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Kidney (vertebrates)

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565:, the pronephros and mesonephros are usually intermediate stages in the formation of metanephros during embryonic development, and metanephros is the final kidney. Genes that are involved in the formation of one form of kidney are reused in the formation of the next one. Metanephros differs from pronephros and mesonephros in development, position in the body, shape, number of nephrons, organization and drainage. Unlike mesonephros, after the end of its development process, metanephros has no longer the ability to add new nephrons through 879:, which are the most efficient way to reabsorb water and produce concentrated urine to conserve water in the body. The mammalian kidneys combine both nephrons with a short and nephrons with a long loop of Henle. The medulla is divided into outer and inner regions. The outer region consists of short loops of Henle and collecting ducts, and the inner region consists of long loops of Henle and collecting ducts. After passing through the loop of Henle, the fluid becomes 942:, and mammalian-type nephrons, with the loop of Henle. Most nephrons are reptilian-type. The loop of Henle of birds is similar to that of mammals, the main difference is that the nephron of birds has only a short loop of Henle. Like mammals, although to a lesser extent, birds are able to produce concentrated urine, thus conserving water in the body. 401:
Pronephros functions in amphibians in the larval stage, in the adults of some bony fishes, and in the adults of some other fish species. The pronephros is a vital organ in animals that go through the aquatic larval stage. If in larvae the pronephros becomes non-functional, then they rapidly die from
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The evolution of the kidneys, along with the evolution of the lungs, allowed vertebrates called amniotes to live and reproduce in terrestrial environment. Metanephros, the permanent kidney of amniotes, has the unique ability to efficiently retain water in the body. In addition to water conservation,
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The structure of the avian kidneys differs from the structure of the mammalian kidneys. The avian kidney is lobulated and usually consists of three lobes. The lobes are divided into lobules, each of which has a cortex and a medulla. The medulla of the each lobule is shaped like a cone, and, unlike
284:. Excretion of excess water from the body is the main characteristic of the pronephros in the case of species in which it develops into a functional excretory organ. In some species, the pronephros is functional during the embryonic stage of development, representing the first stage of 215:. In some vertebrate species, the pronephros and mesonephros are functional organs, while in others they are only intermediate stages in the development of the final kidney, and each next kidney replaces the previous one. The pronephros is a functioning kidney of the embryo in 188:, are slightly more complex than those of the pronephros. The main difference between the pronephros and the mesonephros is that the pronephros consists of non-integrated nephrons with external glomeruli. The most complex nephrons are found in the metanephros of 950:, which is a white paste that is poorly soluble in water, which also helps to reduce water loss. Additional water reabsorption occurs in the cloaca and distal intestine. Altogether, this allows birds to excrete their wastes without significant loss of water. 833:. Most animals have a single renal papilla. In some animals, such as horses, the apices of the renal pyramids fuse with each other to form a common renal papilla, called the renal crest. The renal crest usually appears in animals larger than 659:
Compared with the metanephros of birds and mammals, the metanephros of reptiles is simpler in structure. Unlike mammals, the kidneys of reptiles do not have a clear distinction between cortex and medulla. The kidneys lack the
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is similar between marine fish and all subsequent species. Therefore, it can be said that the kidneys made it possible to preserve approximately the same composition of extracellular fluid in vertebrates as it was in the
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terrestrial life also required maintenance of salt levels in the body along with the excretion of waste products. The first class of animals to become fully terrestrial without a larval stage were the
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that pass through the renal columns. The pyramids consist mainly of tubules that transport urine from the cortex, that produces it by blood filtration, to the tips of the pyramids, that form the
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In mammals, the kidneys are usually bean-shaped and located retroperitoneally on the dorsal (posterior) wall of the body. The outer layer of each kidney is made up of a fibrous sheath called the
288:, after which the mesonephros develops. The mesonephros probably appeared in the course of evolution in response to the increase in body mass of vertebrates, which also led to an increase in 82:, which consists of water and excess or unnecessary substances, the urine is then excreted from the body through other organs, which in vertebrates, depending on the species, may include the 640:. Reptile kidneys are commonly elongated with color ranging from light to dark brown. The shape of the kidneys varies between reptiles due to variations of their body form. The kidneys of 529:. Usually the mesonephros consists of 10–50 nephrons. The mesonephric tubules may have a connection to the coelom, however, the glomeruli of mesonephric nephrons still remain integrated. 2020:
Camarata, Troy; Howard, Alexis; Elsey, Ruth M.; Raza, Sarah; O'Connor, Alice; Beatty, Brian; Conrad, Jack; Solounias, Nikos; Chow, Priscilla; Mukta, Saima; Vasilyev, Aleksandr (2016).
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and bony fishes, the pronephros can remain functional in adults, including often simultaneously with the mesonephros. The mesonephros is the final kidney in amphibians and most fish.
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Frazier, Kendall S.; Seely, John Curtis; Hard, Gordon C.; Betton, Graham; Burnett, Roger; Nakatsuji, Shunji; Nishikawa, Akiyoshi; Durchfeld-Meyer, Beate; Bube, Axel (Jun 2012).
809:. Small mammals have simple, unilobar kidneys with a compact structure and a single renal papilla, while large animals have more complex multilobar kidneys, such as those of 621:
in reptiles functions for some time after birth simultaneously with the metanephros, while later the metanephric kidneys become permanent and the mesonephros degenerates.
164:, the kidneys can differ in the number of nephrons and in their organisation. According to the complexity of the organisation of the nephron, the kidneys are divided into 2452:"Comparative anatomy of neonates of the three major mammalian groups (monotremes, marsupials, placentals) and implications for the ancestral mammalian neonate morphotype" 915:
mammals, it is not subdivided into the inner and outer regions, while structurally it is similar to the outer medulla of the mammalian kidney. In the avian kidney, the
961:, nephrons without a loop of Henle stop filtering, while nephrons with a loop continue, but due to the presence of a loop, they can produce concentrated urine. 957:, but it does not deliver blood to the loops of Henle, blood is delivered only to the proximal and distal tubules of the nephrons. When birds are in a state of 176:. The nephron by itself is similar to pronephros as a whole organ. The simplest nephrons are found in the pronephros, which is the final functional organ in 746:. The medulla consists of one or more pyramids, the bases of which start from corticomedullary border. Medulla pyramid with overlying cortex comprises the 328:
It is believed that the ancient primitive form of the kidney was the archinephros, which had series of segmental tubules through the entire length of the
3012: 2088: 664:, have fewer nephrons (from about 3,000 to 30,000), and cannot produce hypertonic urine. Nitrogenous waste products excreted by the kidneys may include 300:, which were the first amniotes. The kidney takes a key role in maintenance of the constant internal environment. The relative ionic composition of the 4287:"The evolution of the urinary bladder as a storage organ: scent trails and selective pressure of the first land animals in a computational simulation" 436:
Because of its small size and simple structure, the pronephros of fish and amphibian larvae has become an important experimental model for studying
4450: 421:, in the more advanced pronephros they are filtered into the nephrocoel, which is a cavity adjacent to the coelom. The coelom is connected to the 3307: 3013:"A Morphological, Histological and Histochemical Study of the Sexual Segment of the Kidney of the Male Chamaeleo calyptratus (Veiled Chameleon)" 3558:
Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
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Fedorova, Svetlana; Miyamoto, Rieko; Harada, Tomohiro; Isogai, Sumio; Hashimoto, Hisashi; Ozato, Kenjiro; Wakamatsu, Yuko (26 August 2008).
211:. It is believed that the development of embryonic kidneys reflects the evolution of vertebrate kidneys from an early primitive kidney, the 417:
or glomus. The typical pronephric nephron is non-integrated, and the wastes are filtered through the glomerulus or glomus directly to the
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climate. Depending on the environment in which animals have evolved, the functions and structure of the kidneys may differ. Also, between
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Structurally, kidneys vary between mammals. Which structural type a particular species will have depends mainly on the body mass of the
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have led to pre-adaptation of the vertebrate kidneys to different environment conditions and to development of three kidney forms: the
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In birds, the arterial blood is supplied to the kidneys by the cranial, middle and caudal renal arteries. Like reptiles, birds have a
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Fenelon, Jane C.; McElrea, Caleb; Shaw, Geoff; Evans, Alistair R.; Pyne, Michael; Johnston, Stephen D.; Renfree, Marilyn B. (2021).
750:. In multilobar kidneys, the pyramids are separated from each other by dipped into the kidney areas of cortical tissue known as the 3109: 1063:
Peng, Zhenzhen; Sander, Veronika; Davidson, Alan J. (2017-01-01), Orlando, Giuseppe; Remuzzi, Giuseppe; Williams, David F. (eds.),
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which are made of large amount of lobes called reniculi. Each renculus can be compared to a simple unipapillary kidney as a whole.
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All vertebrates have kidneys. The kidneys are the main organ that allows species to adapt to different environments, including
584:. Such branching in the metanephros is unique in relation to the pronephros and mesonephros. Depending on classes and species 4416: 4269: 4242: 4215: 4185: 4153: 3978: 3891: 3858: 3731: 3630: 3509: 3455: 3428: 3401: 3317: 3246: 3219: 3192: 3165: 3119: 3078: 2978: 2880: 2739: 2709: 2682: 2358: 2328: 2188: 2098: 1856: 1761: 1705: 1307: 1280: 1253: 1157: 1076: 1016: 989: 409:
The pronephros is a relatively large organ that has a primitive structure and usually consists of a single pair of bilateral
2764:"Model systems for the study of kidney development: use of the pronephros in the analysis of organ induction and patterning" 2269: 4443: 276:
received their kidneys after a previous adaptation of the kidneys to fresh water. As a result, early vertebrates developed
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Withers, Philip Carew; Cooper, Christine E.; Maloney, Shane K.; Bozinovic, Francisco; Cruz-Neto, Ariovaldo P. (2016).
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Breshears, Melanie A.; Confer, Anthony W. (2017-01-01), Zachary, James F. (ed.), "Chapter 11 - The Urinary System",
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is decreased if water loss needs to be reduced. The glomeruli in reptiles have also decreased in size compared to
272:, their evolution probably took place in fresh or slightly saline water. There is a hypothesis according to which 4950: 4720: 4715: 4436: 2870: 2731:
Kidney Transplantation, Bioengineering, and Regeneration: Kidney Transplantation in the Regenerative Medicine Era
2022:"Postembryonic Nephrogenesis and Persistence of Six2-Expressing Nephron Progenitor Cells in the Reptilian Kidney" 4877: 4802: 4682: 4578: 4085:""Avian-type" renal medullary tubule organization causes immaturity of urine-concentrating ability in neonates" 3776: 867:
in water. Each nephron is located in both the cortex and the medulla. The most proximal part of the nephron is
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Metanephros is the most complex form of kidney. Each metanephric kidney is characterized by a large number of
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are unique compared to other internal organs, since three different kidneys are sequentially developed during
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and then excreted into the cloaca, or collected in the urinary bladder and then excreted outside through the
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Unlike the pronephros, the mesonephros consists of a set of nephrons, the glomeruli of which are enclosed in
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Since the reptile kidneys are unable to produce concentrated urine due to the absence of the loop of Henle,
4662: 4568: 1791: 4920: 3966: 1064: 4700: 688: 1892: 378:, the pronephros is sometimes called the head kidney due to its anterior position behind the head. In 4988: 4895: 4872: 4779: 3760: 1940:"Molecular anatomy of the kidney: what have we learned from gene expression and functional genomics?" 521:, but in some marine fish glomeruli may be absent. In fish, mesonephric kidneys has no division into 4727: 1634:"EF-hand domain containing 2 (Efhc2) is crucial for distal segmentation of pronephros in zebrafish" 506:. In anamniotes, opisthonephros develops from a region of the nephric ridge, which is derived from 348:
which were located in opposite sides of the body. And the archinephric ducts were opened into the
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Principles and methods for the assessment of nephrotoxicity associated with exposure to chemicals
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Mesonephros develops after the pronephros, replacing it. The mesonephros is the final kidney in
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Kriz, Wilhelm; Kaissling, Brigitte (2008-01-01), Alpern, ROBERT J.; Hebert, STEVEN C. (eds.),
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and non-functional. A functional pronephros develops in vertebrates that have a free-swimming
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The kidneys in reptiles are located mainly in the caudal part (away from the head) of the
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mesonephros is called opistonephros to distinguish it from the stage of development in
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part of the body, and each body segment had a pair of tubules. All tubules were opened
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Edward E. Ruppert (1 August 2015). "Evolutionary Origin of the Vertebrate Nephron".
813:. Kidneys can also be with a single renal papilla (the unipapillary kidneys), as in 4849: 4672: 4618: 4347: 4298: 4141: 4096: 4012: 3929: 3897: 3879: 3805: 3764: 3675: 3618: 3565: 3474: 3346: 3280: 3024: 2939: 2923: 2852: 2824: 2775: 2627: 2586: 2570: 2523: 2479: 2463: 2387: 2238: 2220: 2144: 2059: 2041: 1967: 1951: 1904: 1803: 1663: 1645: 1588: 1547: 1529: 1495: 1479: 1450: 1396: 1336: 1203: 1190:
de Bakker, B. S.; van den Hoff, M. J. B.; Vize, P. D.; Oostra, R. J. (2019-07-01).
1117: 904: 795: 723: 625: 522: 306: 265:, replacing each other and reflecting the evolution of the kidneys in vertebrates. 35: 3668:
American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
3554:"The Unique Penile Morphology of the Short-Beaked Echidna, Tachyglossus aculeatus" 2293: 1897:
American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
774:. Urine is excreted through the renal papillae into the calyces and then into the 4993: 4867: 4838: 4644: 4532: 3553: 2812: 2574: 2426: 2046: 1995: 928: 783: 649: 593: 422: 329: 118: 87: 31: 4428: 4145: 4000: 3794:"Proliferative and nonproliferative lesions of the rat and mouse urinary system" 3622: 3351: 3335:"The struggle to equilibrate outer and inner milieus: Renal evolution revisited" 3334: 2927: 2376:"Overview: Nonmammalian Organisms for Studies of Kidney Development and Disease" 2375: 1341: 1325:"The struggle to equilibrate outer and inner milieus: Renal evolution revisited" 1324: 153:, are functionally identical to the ancestral primitive kidneys of vertebrates. 4967: 4960: 4945: 4859: 4742: 4510: 4460: 4083:
Liu, W.; Morimoto, T.; Kondo, Y.; Iinuma, K.; Uchida, S.; Imai, M. (Aug 2001).
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2136: 1955: 1650: 341: 125:, they are usually bean-shaped. Evolutionarily, the kidneys first appeared in 4982: 4854: 4754: 4749: 4705: 4505: 4488: 4359: 4312: 4110: 4026: 3943: 3817: 3809: 3687: 3579: 3360: 3292: 3181:
Doneley, Bob; Monks, Deborah; Johnson, Robert; Carmel, Brendan (2018-02-05).
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it is usually a transitional structure and is subsequently replaced by the
323: 212: 138: 106: 20: 4367: 4001:"Urea and renal function in the 21st century: insights from knockout mice" 3268: 2797: 2543: 2512:"Allometry of the kidney: implications for the ontogeny of osmoregulation" 4764: 4759: 4522: 1534: 1400: 1208: 1191: 1121: 958: 943: 859:
products are excreted by the kidneys of mammals primarily in the form of
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Casotti, Giovanni; Lindberg, Kimberly K.; Braun, Eldon J. (2000-11-01).
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Zoology for Degree Students (For B.Sc. Hons. 4rd Semester, As per CBCS)
2632: 2615: 880: 864: 747: 629: 510:, from which both the mesonephros and metanephros are developed in the 499: 369: 360:, and is also found in the embryos of some more developed vertebrates. 250: 181: 165: 142: 39: 3570: 2828: 2467: 1593: 1576: 617:
that had no larval stage and that were fully terrestrial animals. The
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Vize, Peter D.; Woolf, Adrian S.; Bard, Jonathan B. L. (2003-03-14).
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Avian kidneys combine so called reptilian-type nephrons, without the
791: 692: 681: 665: 483: 459: 357: 220: 216: 4057:"Excretion - General features of excretory structures and functions" 3501:
Jubb, Kennedy & Palmer's Pathology of Domestic Animals: Volume 2
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Bulletin of the Association of Reptilian and Amphibian Veterinarians
762:, which in the multilobar kidney then branches in the region of the 268:
At the very beginning of vertebrates, when they evolved from marine
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of animals, the kidneys differ in shape and anatomical location. In
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Infectious Diseases and Pathology of Reptiles: Color Atlas and Text
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Infectious Diseases and Pathology of Reptiles: Color Atlas and Text
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Foreman, R. E.; Gorbman, A.; Dodd, J. M.; Olsson, R. (2013-03-09).
707: 704: 569:, although many reptiles show ongoing nephron formation in adults. 352:. As an organ, the archnephros is still preserved in the larvae of 269: 231: 4408:
Avian Medicine and Surgery in Practice: Companion and Aviary Birds
903:, the kidneys are typically elongated and located dorsally in the 336:(closer to the midline of the body) into the body cavity known as 4887: 4635: 4542: 2209:"Frontiers in Renal and Epithelial Physiology – Grand Challenges" 924: 872: 810: 806: 787: 673: 597: 573: 554: 550: 503: 486:, it remains functional for some time after birth along with the 479: 467: 410: 353: 297: 258: 157: 137:, which eventually united into a single functional unit. In some 95: 59: 931:; urine is excreted from the kidneys through the ureters to the 837:. The kidneys of bovines are multilobar with external lobation. 802:, and urine is excreted into the cloaca instead of the urethra. 180:. The nephrons of the mesonephros, the functional organ in most 156:
The main structural and functional element of the kidney is the
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are analogous to the kidneys but nephridia are not kidneys. The
78:
in the body. When the blood is being filtered, the kidneys form
4820: 4468: 3333:
Keogh, Laura; Kilroy, David; Bhattacharjee, Sourav (Jan 2021).
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Ferner, Kirsten; Schultz, Julia A.; Zeller, Ulrich (Dec 2017).
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capable of filtering blood and perhaps tubules that reabsorbed
208: 193: 161: 150: 122: 114: 91: 83: 3967:"CHAPTER 20 - Structural Organization of the Mammalian Kidney" 3011:
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embryogenesis, the pronephros is usually considered to be
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1385:"The evolution of blood pressure and the rise of mankind" 1106:"The evolution of blood pressure and the rise of mankind" 984:. Springer Science & Business Media. pp. 53–54. 826: 818: 281: 3332: 2616:"Renal glomerulogenesis in medaka fish, Oryzias latipes" 2176: 1893:"Aquaporins in avian kidneys: function and perspectives" 1322: 919:
is absent, and each lobule has a separate branch to the
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4134:"The loop of Henle, distal tubule and collecting duct" 4082: 3876:
Pathologic Basis of Veterinary Disease (Sixth Edition)
3853:. Springer Science & Business Media. p. 286. 3846: 3791: 2727: 1700:. Springer Science & Business Media. p. 240. 196:. The kidneys of birds and mammals have nephrons with 4234:
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2559:"Induction and patterning of the metanephric nephron" 533:
are typically absent in the embryonic mesonephros of
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1792:"Anatomy and Physiology of the Reptile Renal System" 1382: 1103: 4140:, Dordrecht: Springer Netherlands, pp. 70–85, 3664:"Functional morphology of the avian medullary cone" 2449: 1516:Desgrange, Audrey; Cereghini, Silvia (2015-09-11). 738:. The peripheral layer of the kidney is called the 588:from the ureters can be excreted directly into the 494:, its remains are involved in the formation of the 3617:, Berlin, Heidelberg: Springer, pp. 223–275, 3420:Ecological and Environmental Physiology of Mammals 3010: 2556: 1631: 1515: 1062: 946:waste products are excreted mainly in the form of 203:All three types of kidneys are developed from the 4458: 3971:Seldin and Giebisch's The Kidney (Fourth Edition) 3390:Eurell, Jo Ann; Frappier, Brian L. (2013-03-19). 3184:Reptile Medicine and Surgery in Clinical Practice 2557:O'Brien, Lori L.; McMahon, Andrew P. (Dec 2014). 1469: 1065:"Chapter 71 - Nephron Repair in Mammals and Fish" 443: 149:, together with the vascular filtration site and 4980: 4284: 4204:Farner, Donald S.; King, James R. (2013-09-17). 3999:Fenton, Robert A.; Knepper, Mark A. (Mar 2007). 3608: 798:, which is connected to the urinary bladder and 129:as a result of the independent evolution of the 4285:McCarthy, Maxine; McCarthy, Liam (2019-11-29). 4261:Comparative Physiology of the Vertebrate Kidney 3973:, San Diego: Academic Press, pp. 479–563, 3873: 3723:Comparative Physiology of the Vertebrate Kidney 3238:Current Therapy in Reptile Medicine and Surgery 2143:, Cambridge (MA): Harvard Stem Cell Institute, 1750:Webster, Douglas; Webster, Molly (2013-10-22). 1439:"Evolutionary Origin of the Vertebrate Nephron" 1245:Comparative Physiology of the Vertebrate Kidney 70:. In healthy vertebrates, the kidneys maintain 3389: 3312:. Elsevier Health Sciences. pp. 185–186. 3269:"The Reptilian Renal Portal System - A Review" 2967:Prasad, S. N.; Kashyap, Vasantika (Jun 1989). 2869:Prasad, S. N.; Kashyap, Vasantika (Jun 1989). 2270:"Evolution of the vertebrate excretory system" 1749: 4444: 4336:"Some histological features of avian kidneys" 4333: 4005:Journal of the American Society of Nephrology 3998: 3964: 3759:. Environmental Health Criteria 119. Geneva: 2966: 2868: 2380:Journal of the American Society of Nephrology 2346: 1890: 1511: 1509: 226:, but in mammals it is most often considered 2563:Seminars in Cell & Developmental Biology 2509: 1891:Nishimura, Hiroko; Yang, Yimu (2013-12-01). 1574: 4173: 3393:Dellmann's Textbook of Veterinary Histology 3305: 3234: 3111:Common Diseases of Companion Animals E-Book 3066: 2973:. New Age International. pp. 472–473. 1851:. Discovery Publishing House. p. 294. 1844: 4451: 4437: 4334:Johnson, O. W.; Mugaas, J. N. (Apr 1970). 4203: 4177:Anatomy and Physiology of Domestic Animals 1506: 786:. Then it is excreted outside through the 656:but snakes and crocodiles do not have it. 644:are elongated, cylindrical and lobulated. 42:, which maintain the balance of water and 4302: 4100: 4016: 3933: 3901: 3569: 3504:. Elsevier Health Sciences. p. 379. 3350: 3114:. Elsevier Health Sciences. p. 400. 3028: 2943: 2779: 2704:. S. Chand Publishing. pp. 297–299. 2631: 2590: 2510:Beuchat, C. A.; Braun, E. J. (Nov 1988). 2483: 2391: 2316: 2242: 2224: 2183:. Springer Science & Business Media. 2148: 2063: 2045: 1971: 1667: 1649: 1592: 1551: 1533: 1454: 1340: 1207: 977: 676:. Aquatic reptiles excrete predominantly 58:, and, in many vertebrates, also produce 4257: 4230: 3719: 3241:. Elsevier Health Sciences. p. 84. 3207: 3153: 2810: 2373: 2180:Evolutionary Biology of Primitive Fishes 2134: 1845:Khanna, D. R.; Yadav, P. R. (Dec 2005). 1575:Chan, Techuan; Asashima, Makoto (2006). 1241: 1008:Deuterostomians, Cyclostomes, and Fishes 4404: 4132:Lote, Chris (2000), Lote, Chris (ed.), 3107: 2670: 2130: 2086: 1436: 1004: 684:, which allows them to conserve water. 490:. When mesonephros degenerates in male 4981: 4199: 4197: 4180:. John Wiley & Sons. p. 432. 3749: 3747: 3745: 3743: 3715: 3713: 3657: 3655: 3653: 3651: 3649: 3647: 3547: 3545: 3469: 3467: 3443: 3396:. John Wiley & Sons. p. 566. 3262: 3260: 3258: 3187:. John Wiley & Sons. p. 152. 3149: 3147: 3145: 3006: 3004: 2909: 2864: 2862: 2757: 2755: 2753: 2751: 2723: 2721: 2505: 2503: 2202: 2200: 2128: 2126: 2124: 2122: 2120: 2118: 2116: 2114: 2112: 2110: 1944:Pediatric Nephrology (Berlin, Germany) 1886: 1884: 1882: 1785: 1783: 1781: 1779: 1777: 1775: 1773: 1378: 1376: 1295: 871:, which is located in the cortex. The 603: 4432: 3915: 3497: 3309:Reptile Medicine and Surgery - E-Book 3070:Reptile Medicine and Surgery - E-Book 3062: 3060: 3058: 3056: 2421: 2419: 2342: 2340: 2264: 2262: 2206: 1721: 1719: 1717: 1693: 1689: 1687: 1432: 1430: 1428: 1426: 1389:Nephrology, Dialysis, Transplantation 1272:Vertebrates: Structures and Functions 1268: 1237: 1235: 1192:"The Pronephros; a Fresh Perspective" 1149:Vertebrates: Structures and Functions 1145: 1071:, Academic Press, pp. 997–1003, 1034: 1032: 1030: 1028: 680:, while terrestrial reptiles excrete 4131: 4102:10.1046/j.1523-1755.2001.060002680.x 3266: 2734:. Academic Press. pp. 973–974. 2323:. S. Chand Publishing. p. 909. 1789: 1185: 1183: 1181: 1179: 1177: 1175: 1173: 1171: 1169: 1141: 1139: 1099: 1097: 1095: 1093: 429:, which drain coelom fluid into the 245:and the need to regulate body fluid 16:Paired internal organ in vertebrates 4258:Dantzler, William H. (2016-07-05). 4194: 3922:The Journal of Experimental Biology 3850:The Viscera of the Domestic Mammals 3740: 3720:Dantzler, William H. (2016-07-05). 3710: 3644: 3542: 3464: 3255: 3208:Jacobson, Elliott R. (2007-04-11). 3154:Jacobson, Elliott R. (2007-04-11). 3142: 3017:International Journal of Morphology 3001: 2859: 2748: 2718: 2697: 2500: 2197: 2107: 1879: 1770: 1373: 1242:Dantzler, William H. (2016-07-05). 1196:Integrative and Comparative Biology 1110:Nephrology Dialysis Transplantation 717: 699:blood supply, reptiles also have a 13: 3918:"Osmoregulation in marine mammals" 3884:10.1016/B978-0-323-35775-3.00011-4 3053: 2516:The American Journal of Physiology 2416: 2337: 2259: 1714: 1684: 1423: 1232: 1025: 14: 5005: 1753:Comparative Vertebrate Morphology 1166: 1136: 1090: 742:and the inner part is called the 628:or retroperitoneally (behind the 613:Reptiles were the first class of 608: 3680:10.1152/ajpregu.2000.279.5.R1722 3108:Summers, Alleice (26 Apr 2019). 2970:A Textbook of Vertebrate Zoology 2872:A Textbook of Vertebrate Zoology 825:, or with a large number, as in 576:and a highly branched system of 466:. In more advanced vertebrates ( 257:and metanephros. The kidneys of 4398: 4374: 4340:The American Journal of Anatomy 4327: 4278: 4251: 4237:. Academic Press. p. 470. 4224: 4167: 4125: 4049: 3992: 3958: 3909: 3867: 3840: 3785: 3602: 3518: 3491: 3437: 3410: 3383: 3326: 3299: 3228: 3201: 3174: 3101: 3030:10.4067/S0717-95022021000401200 2960: 2910:Little, Melissa H. (Jun 2021). 2903: 2817:Nephron Experimental Nephrology 2804: 2691: 2671:Kardong, Kenneth (2014-10-16). 2664: 2607: 2550: 2528:10.1152/ajpregu.1988.255.5.R760 2443: 2367: 2310: 2286: 2170: 2087:Kardong, Kenneth (2014-10-16). 2080: 2013: 1988: 1931: 1838: 1756:. Academic Press. p. 494. 1743: 1625: 1581:Nephron Experimental Nephrology 1568: 1463: 1437:Ruppert, Edward E. (Aug 2015). 1316: 1289: 894: 470:), mesonephros develops during 317: 312: 4803:Extraglomerular mesangial cell 4683:Intraglomerular mesangial cell 4231:Marshall, A. J. (2013-10-22). 4210:. Elsevier. pp. 528–529. 4138:Principles of Renal Physiology 3878:, Mosby, pp. 617–681.e1, 3498:Maxie, M. Grant (2015-08-14). 2374:Igarashi, Peter (2005-02-01). 1262: 1056: 1005:Florkin, Marcel (2014-04-24). 998: 971: 875:of the mammalian kidneys have 758:enters the kidney through the 544: 444:Mesonephros and opisthonephros 1: 3267:Holz, Peter H. (1999-01-01). 3134:: CS1 maint: date and year ( 3093:: CS1 maint: date and year ( 2993:: CS1 maint: date and year ( 2895:: CS1 maint: date and year ( 2813:"Kidney regeneration in fish" 1871:: CS1 maint: date and year ( 964: 363: 4663:Glomerular basement membrane 3444:Moffat, D. B. (1975-06-12). 3073:. Elsevier Health Sciences. 2677:. McGraw Hill. p. 549. 2575:10.1016/j.semcdb.2014.08.014 2093:. McGraw Hill. p. 562. 2047:10.1371/journal.pone.0153422 1577:"Growing kidney in the frog" 1296:Moffat, D. B. (1975-06-12). 978:Skadhauge, E. (2012-12-06). 794:, the ureters open into the 578:collecting tubules and ducts 474:and is then replaced by the 398:stage in their development. 237: 230:and not functional. In some 7: 4405:Doneley, Bob (2010-10-30). 4146:10.1007/978-94-011-4086-7_6 3623:10.1007/978-3-642-58301-8_6 3450:. CUP Archive. p. 18. 3423:. Oxford University Press. 3352:10.1016/j.aanat.2020.151610 2928:10.1016/j.ydbio.2020.12.009 1790:Holz, Peter H. (Jan 2020). 1694:Grunz, Horst (2013-03-09). 1342:10.1016/j.aanat.2020.151610 1302:. CUP Archive. p. 13. 1269:Kisia, S. M. (2016-04-19). 1146:Kisia, S. M. (2016-04-19). 923:. No birds, except for the 10: 5010: 4701:Proximal convoluted tubule 2811:Davidson, Alan J. (2014). 2137:"Mouse kidney development" 2135:Davidson, Alan J. (2008), 1909:10.1152/ajpregu.00177.2013 1808:10.1016/j.cvex.2019.08.005 1275:. CRC Press. p. 436. 1152:. CRC Press. p. 434. 727: 721: 689:glomerular filtration rate 447: 367: 321: 18: 4896:Internal urethral orifice 4886: 4873:Median umbilical ligament 4837: 4819: 4780:Juxtaglomerular apparatus 4778: 4691: 4643: 4634: 4551: 4476: 4467: 4411:. CRC Press. p. 20. 4382:"Why Is Bird Poop White?" 4304:10.1007/s42452-019-1692-9 3916:Ortiz, R. M. (Jun 2001). 3761:World Health Organization 3160:. CRC Press. p. 14. 2875:. New Age International. 1956:10.1007/s00467-009-1392-6 1651:10.1186/s13578-018-0253-z 1011:. Elsevier. p. 575. 4728:Distal convoluted tubule 4264:. Springer. p. 19. 4207:Avian Biology: Volume II 3810:10.1177/0192623312438736 3726:. Springer. p. 20. 2226:10.3389/fphys.2012.00002 1697:The Vertebrate Organizer 386:in most vertebrates. In 56:metabolic waste products 19:Not to be confused with 4604:Peritubular capillaries 3935:10.1242/jeb.204.11.1831 3285:10.5818/1076-3139.9.1.4 2353:. Elsevier. p. 2. 2213:Frontiers in Physiology 2207:Eaton, Douglas (2012). 2150:10.3824/stembook.1.34.1 1731:Encyclopedia Britannica 981:Osmoregulation in Birds 4829:Ureteropelvic junction 4733:Collecting duct system 4516:medullary interstitium 4352:10.1002/aja.1001270407 4018:10.1681/ASN.2006101108 2781:10.1006/dbio.1997.8629 2620:Developmental Dynamics 2393:10.1681/ASN.2004110951 911:skeletal depressions. 891:is absent in mammals. 821:, with several, as in 648:and some lizards have 592:, or collected in the 4793:Juxtaglomerular cells 3798:Toxicologic Pathology 3526:"Excretion - Mammals" 2916:Developmental Biology 2768:Developmental Biology 2698:V.K, Agarwal (2022). 1638:Cell & Bioscience 695:. In addition to the 580:, that open into the 508:intermediate mesoderm 425:through the ciliated 243:Evolutionary pressure 205:intermediate mesoderm 4089:Kidney International 3928:(Pt 11): 1831–1844. 3804:(4 Suppl): 14S–86S. 3763:. 1991. p. 49. 3447:The Mammalian Kidney 2522:(5 Pt 2): R760–767. 1535:10.3390/cells4030483 1484:10.1093/ICB/34.4.542 1456:10.1093/icb/34.4.542 1299:The Mammalian Kidney 652:that opens into the 344:into the two common 4956:Lacunae of Morgagni 4901:Urethral sphincters 4291:SN Applied Sciences 2038:2016PLoSO..1153422C 1903:(11): R1201–R1214. 955:renal portal system 889:renal portal system 768:interlobar arteries 701:renal portal system 604:Metanephric kidneys 496:reproductive system 302:extracellular fluid 76:extracellular fluid 3674:(5): R1722–R1730. 2633:10.1002/dvdy.21687 2456:Journal of Anatomy 2317:P.S.Verma (2013). 1848:Biology of Mammals 1472:American Zoologist 1443:American Zoologist 1401:10.1093/ndt/gfu275 1209:10.1093/icb/icz001 1122:10.1093/ndt/gfu275 863:, which is highly 851:reniculate kidneys 438:kidney development 346:archinephric ducts 286:kidney development 4976: 4975: 4815: 4814: 4811: 4810: 4738:Connecting tubule 4418:978-1-84076-592-2 4271:978-1-4939-3734-9 4244:978-1-4832-6379-3 4217:978-1-4832-6942-9 4187:978-1-118-70111-9 4155:978-94-011-4086-7 3980:978-0-12-088488-9 3893:978-0-323-35775-3 3860:978-1-4757-6814-5 3733:978-1-4939-3734-9 3632:978-3-642-58301-8 3571:10.1159/000515145 3511:978-0-7020-6837-9 3457:978-0-521-20599-3 3430:978-0-19-964271-7 3403:978-1-118-68582-2 3339:Annals of Anatomy 3319:978-1-4160-6477-0 3248:978-0-323-24293-6 3221:978-1-4200-0403-8 3194:978-1-118-97767-5 3167:978-1-4200-0403-8 3121:978-0-323-59801-9 3080:978-1-4160-6477-0 2980:978-0-85226-928-2 2882:978-0-85226-928-2 2829:10.1159/000360660 2741:978-0-12-801836-1 2711:978-93-5253-410-4 2684:978-0-07-717192-6 2468:10.1111/joa.12689 2360:978-0-08-052154-1 2330:978-81-219-1639-4 2190:978-1-4615-9453-6 2100:978-0-07-717192-6 1858:978-81-7141-934-0 1763:978-1-4832-7259-7 1707:978-3-662-10416-3 1594:10.1159/000092192 1329:Annals of Anatomy 1309:978-0-521-20599-3 1282:978-1-4398-4052-8 1255:978-1-4939-3734-9 1159:978-1-4398-4052-8 1078:978-0-12-801734-0 1018:978-0-323-16334-7 991:978-3-642-81585-0 857:Nitrogenous waste 519:Bowman's capsules 413:with an external 376:lower vertebrates 5001: 4989:Endocrine system 4850:Vesical arteries 4673:Filtration slits 4658:Bowman's capsule 4641: 4640: 4474: 4473: 4453: 4446: 4439: 4430: 4429: 4423: 4422: 4402: 4396: 4395: 4393: 4392: 4378: 4372: 4371: 4331: 4325: 4324: 4306: 4282: 4276: 4275: 4255: 4249: 4248: 4228: 4222: 4221: 4201: 4192: 4191: 4171: 4165: 4164: 4163: 4162: 4129: 4123: 4122: 4104: 4080: 4071: 4070: 4068: 4067: 4053: 4047: 4046: 4020: 3996: 3990: 3989: 3988: 3987: 3962: 3956: 3955: 3937: 3913: 3907: 3906: 3905: 3871: 3865: 3864: 3844: 3838: 3837: 3789: 3783: 3782: 3751: 3738: 3737: 3717: 3708: 3707: 3659: 3642: 3641: 3640: 3639: 3606: 3600: 3599: 3573: 3549: 3540: 3539: 3537: 3536: 3522: 3516: 3515: 3495: 3489: 3488: 3486: 3485: 3471: 3462: 3461: 3441: 3435: 3434: 3414: 3408: 3407: 3387: 3381: 3380: 3354: 3330: 3324: 3323: 3303: 3297: 3296: 3264: 3253: 3252: 3232: 3226: 3225: 3205: 3199: 3198: 3178: 3172: 3171: 3151: 3140: 3139: 3133: 3125: 3105: 3099: 3098: 3092: 3084: 3064: 3051: 3050: 3032: 3023:(4): 1200–1211. 3008: 2999: 2998: 2992: 2984: 2964: 2958: 2957: 2947: 2907: 2901: 2900: 2894: 2886: 2866: 2857: 2856: 2808: 2802: 2801: 2783: 2759: 2746: 2745: 2725: 2716: 2715: 2695: 2689: 2688: 2668: 2662: 2661: 2635: 2626:(9): 2342–2352. 2611: 2605: 2604: 2594: 2554: 2548: 2547: 2507: 2498: 2497: 2487: 2447: 2441: 2440: 2438: 2437: 2423: 2414: 2413: 2395: 2371: 2365: 2364: 2344: 2335: 2334: 2320:Chordate Zoology 2314: 2308: 2307: 2305: 2304: 2290: 2284: 2283: 2281: 2280: 2266: 2257: 2256: 2246: 2228: 2204: 2195: 2194: 2174: 2168: 2167: 2166: 2165: 2152: 2132: 2105: 2104: 2084: 2078: 2077: 2067: 2049: 2017: 2011: 2010: 2008: 2007: 1992: 1986: 1985: 1975: 1950:(6): 1005–1016. 1935: 1929: 1928: 1888: 1877: 1876: 1870: 1862: 1842: 1836: 1835: 1787: 1768: 1767: 1747: 1741: 1740: 1738: 1737: 1723: 1712: 1711: 1691: 1682: 1681: 1671: 1653: 1629: 1623: 1622: 1596: 1572: 1566: 1565: 1555: 1537: 1513: 1504: 1503: 1467: 1461: 1460: 1458: 1434: 1421: 1420: 1380: 1371: 1370: 1344: 1320: 1314: 1313: 1293: 1287: 1286: 1266: 1260: 1259: 1239: 1230: 1229: 1211: 1187: 1164: 1163: 1143: 1134: 1133: 1101: 1088: 1087: 1086: 1085: 1060: 1054: 1053: 1051: 1050: 1036: 1023: 1022: 1002: 996: 995: 975: 905:abdominal cavity 883:relative to the 796:urogenital sinus 724:Mammalian kidney 718:Mammalian kidney 626:abdominal cavity 553:, which include 498:. Sometimes the 307:primordial ocean 62:(in particular, 36:excretory system 5009: 5008: 5004: 5003: 5002: 5000: 4999: 4998: 4979: 4978: 4977: 4972: 4951:navicular fossa 4882: 4868:Detrusor muscle 4833: 4807: 4774: 4721:Thick ascending 4687: 4645:Renal corpuscle 4630: 4547: 4533:Cortical lobule 4463: 4459:Anatomy of the 4457: 4427: 4426: 4419: 4403: 4399: 4390: 4388: 4380: 4379: 4375: 4332: 4328: 4283: 4279: 4272: 4256: 4252: 4245: 4229: 4225: 4218: 4202: 4195: 4188: 4172: 4168: 4160: 4158: 4156: 4130: 4126: 4081: 4074: 4065: 4063: 4055: 4054: 4050: 3997: 3993: 3985: 3983: 3981: 3963: 3959: 3914: 3910: 3894: 3872: 3868: 3861: 3845: 3841: 3790: 3786: 3779: 3753: 3752: 3741: 3734: 3718: 3711: 3660: 3645: 3637: 3635: 3633: 3607: 3603: 3550: 3543: 3534: 3532: 3524: 3523: 3519: 3512: 3496: 3492: 3483: 3481: 3475:"Renal pyramid" 3473: 3472: 3465: 3458: 3442: 3438: 3431: 3415: 3411: 3404: 3388: 3384: 3331: 3327: 3320: 3304: 3300: 3265: 3256: 3249: 3233: 3229: 3222: 3206: 3202: 3195: 3179: 3175: 3168: 3152: 3143: 3127: 3126: 3122: 3106: 3102: 3086: 3085: 3081: 3065: 3054: 3009: 3002: 2986: 2985: 2981: 2965: 2961: 2908: 2904: 2888: 2887: 2883: 2867: 2860: 2809: 2805: 2760: 2749: 2742: 2726: 2719: 2712: 2696: 2692: 2685: 2669: 2665: 2612: 2608: 2555: 2551: 2508: 2501: 2448: 2444: 2435: 2433: 2425: 2424: 2417: 2372: 2368: 2361: 2345: 2338: 2331: 2315: 2311: 2302: 2300: 2292: 2291: 2287: 2278: 2276: 2268: 2267: 2260: 2205: 2198: 2191: 2175: 2171: 2163: 2161: 2133: 2108: 2101: 2085: 2081: 2032:(5): e0153422. 2018: 2014: 2005: 2003: 1994: 1993: 1989: 1936: 1932: 1889: 1880: 1864: 1863: 1859: 1843: 1839: 1788: 1771: 1764: 1748: 1744: 1735: 1733: 1725: 1724: 1715: 1708: 1692: 1685: 1630: 1626: 1573: 1569: 1514: 1507: 1468: 1464: 1435: 1424: 1381: 1374: 1321: 1317: 1310: 1294: 1290: 1283: 1267: 1263: 1256: 1240: 1233: 1188: 1167: 1160: 1144: 1137: 1102: 1091: 1083: 1081: 1079: 1061: 1057: 1048: 1046: 1038: 1037: 1026: 1019: 1003: 999: 992: 976: 972: 967: 897: 732: 726: 720: 650:urinary bladder 636:in the case of 611: 606: 594:urinary bladder 547: 456: 448:Main articles: 446: 423:pronephric duct 372: 366: 326: 320: 315: 278:renal glomeruli 240: 131:renal glomeruli 88:urinary bladder 66:) and maintain 24: 17: 12: 11: 5: 5007: 4997: 4996: 4991: 4974: 4973: 4971: 4970: 4968:Urinary meatus 4965: 4964: 4963: 4961:urethral gland 4958: 4953: 4948: 4943: 4938: 4933: 4925: 4924: 4923: 4918: 4917: 4916: 4911: 4898: 4892: 4890: 4884: 4883: 4881: 4880: 4875: 4870: 4865: 4864: 4863: 4860:Vaginal artery 4857: 4852: 4843: 4841: 4835: 4834: 4832: 4831: 4825: 4823: 4817: 4816: 4813: 4812: 4809: 4808: 4806: 4805: 4800: 4795: 4790: 4784: 4782: 4776: 4775: 4773: 4772: 4767: 4762: 4757: 4752: 4747: 4746: 4745: 4743:Papillary duct 4740: 4730: 4725: 4724: 4723: 4718: 4716:Thin ascending 4713: 4703: 4697: 4695: 4689: 4688: 4686: 4685: 4680: 4675: 4670: 4665: 4660: 4655: 4649: 4647: 4638: 4632: 4631: 4629: 4628: 4627: 4626: 4621: 4616: 4611: 4606: 4601: 4593: 4592: 4591: 4586: 4581: 4576: 4571: 4566: 4557: 4555: 4549: 4548: 4546: 4545: 4540: 4535: 4530: 4525: 4520: 4519: 4518: 4513: 4503: 4502: 4501: 4491: 4486: 4480: 4478: 4471: 4465: 4464: 4461:urinary system 4456: 4455: 4448: 4441: 4433: 4425: 4424: 4417: 4397: 4373: 4346:(4): 423–436. 4326: 4277: 4270: 4250: 4243: 4223: 4216: 4193: 4186: 4166: 4154: 4124: 4095:(2): 680–693. 4072: 4048: 4011:(3): 679–688. 3991: 3979: 3957: 3908: 3892: 3866: 3859: 3839: 3784: 3777: 3739: 3732: 3709: 3643: 3631: 3601: 3564:(4): 262–271. 3541: 3517: 3510: 3490: 3463: 3456: 3436: 3429: 3409: 3402: 3382: 3325: 3318: 3298: 3254: 3247: 3227: 3220: 3200: 3193: 3173: 3166: 3141: 3120: 3100: 3079: 3052: 3000: 2979: 2959: 2902: 2881: 2858: 2803: 2774:(2): 189–204. 2747: 2740: 2717: 2710: 2690: 2683: 2663: 2606: 2549: 2499: 2462:(6): 798–822. 2442: 2415: 2386:(2): 296–298. 2366: 2359: 2336: 2329: 2309: 2294:"Archinephros" 2285: 2258: 2196: 2189: 2169: 2106: 2099: 2079: 2012: 1987: 1930: 1878: 1857: 1837: 1802:(1): 103–114. 1769: 1762: 1742: 1713: 1706: 1683: 1624: 1567: 1528:(3): 483–499. 1505: 1478:(4): 542–553. 1462: 1449:(4): 542–553. 1422: 1395:(5): 713–723. 1372: 1315: 1308: 1288: 1281: 1261: 1254: 1231: 1165: 1158: 1135: 1116:(5): 713–723. 1089: 1077: 1055: 1024: 1017: 997: 990: 969: 968: 966: 963: 896: 893: 877:loops of Henle 839:Marine mammals 823:spider monkeys 772:renal papillae 722:Main article: 719: 716: 610: 609:Reptile kidney 607: 605: 602: 546: 543: 454:Opisthonephros 445: 442: 368:Main article: 365: 362: 322:Main article: 319: 316: 314: 311: 290:blood pressure 239: 236: 186:opisthonephros 178:primitive fish 68:blood pressure 50:), filter the 48:osmoregulation 30:are a pair of 15: 9: 6: 4: 3: 2: 5006: 4995: 4992: 4990: 4987: 4986: 4984: 4969: 4966: 4962: 4959: 4957: 4954: 4952: 4949: 4947: 4944: 4942: 4939: 4937: 4934: 4932: 4931:pre-prostatic 4929: 4928: 4927:Male urethra 4926: 4922: 4919: 4915: 4912: 4910: 4907: 4906: 4904: 4903: 4902: 4899: 4897: 4894: 4893: 4891: 4889: 4885: 4879: 4876: 4874: 4871: 4869: 4866: 4861: 4858: 4856: 4855:Vesical veins 4853: 4851: 4848: 4847: 4845: 4844: 4842: 4840: 4836: 4830: 4827: 4826: 4824: 4822: 4818: 4804: 4801: 4799: 4796: 4794: 4791: 4789: 4786: 4785: 4783: 4781: 4777: 4771: 4768: 4766: 4763: 4761: 4758: 4756: 4755:Renal papilla 4753: 4751: 4750:Tubular fluid 4748: 4744: 4741: 4739: 4736: 4735: 4734: 4731: 4729: 4726: 4722: 4719: 4717: 4714: 4712: 4709: 4708: 4707: 4706:Loop of Henle 4704: 4702: 4699: 4698: 4696: 4694: 4690: 4684: 4681: 4679: 4676: 4674: 4671: 4669: 4666: 4664: 4661: 4659: 4656: 4654: 4651: 4650: 4648: 4646: 4642: 4639: 4637: 4633: 4625: 4622: 4620: 4617: 4615: 4612: 4610: 4607: 4605: 4602: 4600: 4597: 4596: 4594: 4590: 4587: 4585: 4582: 4580: 4577: 4575: 4572: 4570: 4567: 4565: 4562: 4561: 4559: 4558: 4556: 4554: 4550: 4544: 4541: 4539: 4538:Medullary ray 4536: 4534: 4531: 4529: 4526: 4524: 4521: 4517: 4514: 4512: 4509: 4508: 4507: 4504: 4500: 4497: 4496: 4495: 4492: 4490: 4487: 4485: 4482: 4481: 4479: 4475: 4472: 4470: 4466: 4462: 4454: 4449: 4447: 4442: 4440: 4435: 4434: 4431: 4420: 4414: 4410: 4409: 4401: 4387: 4383: 4377: 4369: 4365: 4361: 4357: 4353: 4349: 4345: 4341: 4337: 4330: 4322: 4318: 4314: 4310: 4305: 4300: 4296: 4292: 4288: 4281: 4273: 4267: 4263: 4262: 4254: 4246: 4240: 4236: 4235: 4227: 4219: 4213: 4209: 4208: 4200: 4198: 4189: 4183: 4179: 4178: 4170: 4157: 4151: 4147: 4143: 4139: 4135: 4128: 4120: 4116: 4112: 4108: 4103: 4098: 4094: 4090: 4086: 4079: 4077: 4062: 4058: 4052: 4044: 4040: 4036: 4032: 4028: 4024: 4019: 4014: 4010: 4006: 4002: 3995: 3982: 3976: 3972: 3968: 3961: 3953: 3949: 3945: 3941: 3936: 3931: 3927: 3923: 3919: 3912: 3904: 3899: 3895: 3889: 3885: 3881: 3877: 3870: 3862: 3856: 3852: 3851: 3843: 3835: 3831: 3827: 3823: 3819: 3815: 3811: 3807: 3803: 3799: 3795: 3788: 3780: 3774: 3770: 3766: 3762: 3758: 3757: 3750: 3748: 3746: 3744: 3735: 3729: 3725: 3724: 3716: 3714: 3705: 3701: 3697: 3693: 3689: 3685: 3681: 3677: 3673: 3669: 3665: 3658: 3656: 3654: 3652: 3650: 3648: 3634: 3628: 3624: 3620: 3616: 3612: 3605: 3597: 3593: 3589: 3585: 3581: 3577: 3572: 3567: 3563: 3559: 3555: 3548: 3546: 3531: 3527: 3521: 3513: 3507: 3503: 3502: 3494: 3480: 3476: 3470: 3468: 3459: 3453: 3449: 3448: 3440: 3432: 3426: 3422: 3421: 3413: 3405: 3399: 3395: 3394: 3386: 3378: 3374: 3370: 3366: 3362: 3358: 3353: 3348: 3344: 3340: 3336: 3329: 3321: 3315: 3311: 3310: 3302: 3294: 3290: 3286: 3282: 3278: 3274: 3270: 3263: 3261: 3259: 3250: 3244: 3240: 3239: 3231: 3223: 3217: 3214:. CRC Press. 3213: 3212: 3204: 3196: 3190: 3186: 3185: 3177: 3169: 3163: 3159: 3158: 3150: 3148: 3146: 3137: 3131: 3123: 3117: 3113: 3112: 3104: 3096: 3090: 3082: 3076: 3072: 3071: 3063: 3061: 3059: 3057: 3048: 3044: 3040: 3036: 3031: 3026: 3022: 3018: 3014: 3007: 3005: 2996: 2990: 2982: 2976: 2972: 2971: 2963: 2955: 2951: 2946: 2941: 2937: 2933: 2929: 2925: 2921: 2917: 2913: 2906: 2898: 2892: 2884: 2878: 2874: 2873: 2865: 2863: 2854: 2850: 2846: 2842: 2838: 2834: 2830: 2826: 2822: 2818: 2814: 2807: 2799: 2795: 2791: 2787: 2782: 2777: 2773: 2769: 2765: 2758: 2756: 2754: 2752: 2743: 2737: 2733: 2732: 2724: 2722: 2713: 2707: 2703: 2702: 2694: 2686: 2680: 2676: 2675: 2667: 2659: 2655: 2651: 2647: 2643: 2639: 2634: 2629: 2625: 2621: 2617: 2610: 2602: 2598: 2593: 2588: 2584: 2580: 2576: 2572: 2568: 2564: 2560: 2553: 2545: 2541: 2537: 2533: 2529: 2525: 2521: 2517: 2513: 2506: 2504: 2495: 2491: 2486: 2481: 2477: 2473: 2469: 2465: 2461: 2457: 2453: 2446: 2432: 2428: 2427:"Mesonephros" 2422: 2420: 2411: 2407: 2403: 2399: 2394: 2389: 2385: 2381: 2377: 2370: 2362: 2356: 2352: 2351: 2343: 2341: 2332: 2326: 2322: 2321: 2313: 2299: 2295: 2289: 2275: 2271: 2265: 2263: 2254: 2250: 2245: 2240: 2236: 2232: 2227: 2222: 2218: 2214: 2210: 2203: 2201: 2192: 2186: 2182: 2181: 2173: 2160: 2156: 2151: 2146: 2142: 2138: 2131: 2129: 2127: 2125: 2123: 2121: 2119: 2117: 2115: 2113: 2111: 2102: 2096: 2092: 2091: 2083: 2075: 2071: 2066: 2061: 2057: 2053: 2048: 2043: 2039: 2035: 2031: 2027: 2023: 2016: 2001: 1997: 1996:"Mesonephros" 1991: 1983: 1979: 1974: 1969: 1965: 1961: 1957: 1953: 1949: 1945: 1941: 1934: 1926: 1922: 1918: 1914: 1910: 1906: 1902: 1898: 1894: 1887: 1885: 1883: 1874: 1868: 1860: 1854: 1850: 1849: 1841: 1833: 1829: 1825: 1821: 1817: 1813: 1809: 1805: 1801: 1797: 1793: 1786: 1784: 1782: 1780: 1778: 1776: 1774: 1765: 1759: 1755: 1754: 1746: 1732: 1728: 1722: 1720: 1718: 1709: 1703: 1699: 1698: 1690: 1688: 1679: 1675: 1670: 1665: 1661: 1657: 1652: 1647: 1643: 1639: 1635: 1628: 1620: 1616: 1612: 1608: 1604: 1600: 1595: 1590: 1587:(3): e81–85. 1586: 1582: 1578: 1571: 1563: 1559: 1554: 1549: 1545: 1541: 1536: 1531: 1527: 1523: 1519: 1512: 1510: 1501: 1497: 1493: 1489: 1485: 1481: 1477: 1473: 1466: 1457: 1452: 1448: 1444: 1440: 1433: 1431: 1429: 1427: 1418: 1414: 1410: 1406: 1402: 1398: 1394: 1390: 1386: 1379: 1377: 1368: 1364: 1360: 1356: 1352: 1348: 1343: 1338: 1334: 1330: 1326: 1319: 1311: 1305: 1301: 1300: 1292: 1284: 1278: 1274: 1273: 1265: 1257: 1251: 1247: 1246: 1238: 1236: 1227: 1223: 1219: 1215: 1210: 1205: 1201: 1197: 1193: 1186: 1184: 1182: 1180: 1178: 1176: 1174: 1172: 1170: 1161: 1155: 1151: 1150: 1142: 1140: 1131: 1127: 1123: 1119: 1115: 1111: 1107: 1100: 1098: 1096: 1094: 1080: 1074: 1070: 1066: 1059: 1045: 1041: 1035: 1033: 1031: 1029: 1020: 1014: 1010: 1009: 1001: 993: 987: 983: 982: 974: 970: 962: 960: 956: 951: 949: 945: 941: 940:loop of Henle 936: 934: 930: 926: 922: 918: 912: 910: 906: 902: 892: 890: 886: 882: 878: 874: 870: 866: 862: 858: 854: 852: 848: 844: 840: 836: 832: 828: 824: 820: 816: 812: 808: 803: 801: 797: 793: 789: 785: 781: 777: 773: 769: 765: 761: 757: 753: 752:renal columns 749: 745: 741: 737: 736:renal capsule 731: 725: 715: 713: 712:tubular cells 709: 706: 702: 698: 694: 690: 685: 683: 679: 675: 671: 667: 663: 662:loop of Henle 657: 655: 651: 647: 643: 639: 635: 634:pelvic cavity 631: 627: 622: 620: 616: 601: 599: 595: 591: 587: 583: 579: 575: 570: 568: 567:nephrogenesis 564: 560: 556: 552: 542: 540: 536: 532: 528: 524: 520: 515: 514:of amniotes. 513: 509: 505: 501: 497: 493: 489: 485: 481: 477: 473: 472:embryogenesis 469: 465: 461: 455: 451: 441: 439: 434: 432: 428: 424: 420: 416: 412: 407: 405: 399: 397: 393: 389: 385: 381: 380:embryogenesis 377: 371: 361: 359: 355: 351: 347: 343: 339: 335: 331: 325: 310: 308: 303: 299: 293: 291: 287: 283: 279: 275: 271: 266: 264: 263:embryogenesis 260: 256: 252: 248: 244: 235: 233: 229: 225: 222: 218: 214: 210: 206: 201: 199: 198:loop of Henle 195: 191: 187: 183: 179: 175: 171: 167: 163: 159: 154: 152: 148: 147:metanephridia 144: 140: 139:invertebrates 136: 132: 128: 124: 120: 116: 112: 108: 104: 99: 97: 93: 89: 85: 81: 77: 73: 69: 65: 61: 57: 53: 49: 46:in the body ( 45: 41: 37: 33: 29: 22: 4941:intermediate 4846:Circulation 4788:Macula densa 4770:Renal pelvis 4693:Renal tubule 4584:interlobular 4564:Renal artery 4407: 4400: 4389:. Retrieved 4385: 4376: 4343: 4339: 4329: 4297:(12): 1727. 4294: 4290: 4280: 4260: 4253: 4233: 4226: 4206: 4176: 4169: 4159:, retrieved 4137: 4127: 4092: 4088: 4064:. Retrieved 4060: 4051: 4008: 4004: 3994: 3984:, retrieved 3970: 3960: 3925: 3921: 3911: 3875: 3869: 3849: 3842: 3801: 3797: 3787: 3755: 3722: 3671: 3667: 3636:, retrieved 3614: 3604: 3561: 3557: 3533:. Retrieved 3529: 3520: 3500: 3493: 3482:. Retrieved 3478: 3446: 3439: 3419: 3412: 3392: 3385: 3342: 3338: 3328: 3308: 3301: 3276: 3272: 3237: 3230: 3210: 3203: 3183: 3176: 3156: 3110: 3103: 3069: 3020: 3016: 2969: 2962: 2919: 2915: 2905: 2871: 2823:(2): 45–49. 2820: 2816: 2806: 2771: 2767: 2730: 2700: 2693: 2673: 2666: 2623: 2619: 2609: 2566: 2562: 2552: 2519: 2515: 2459: 2455: 2445: 2434:. Retrieved 2430: 2383: 2379: 2369: 2349: 2319: 2312: 2301:. Retrieved 2297: 2288: 2277:. Retrieved 2273: 2216: 2212: 2179: 2172: 2162:, retrieved 2140: 2089: 2082: 2029: 2025: 2015: 2004:. Retrieved 2002:. 2017-07-06 1999: 1990: 1947: 1943: 1933: 1900: 1896: 1847: 1840: 1799: 1795: 1752: 1745: 1734:. Retrieved 1730: 1696: 1641: 1637: 1627: 1584: 1580: 1570: 1525: 1521: 1475: 1471: 1465: 1446: 1442: 1392: 1388: 1332: 1328: 1318: 1298: 1291: 1271: 1264: 1248:. Springer. 1244: 1202:(1): 29–47. 1199: 1195: 1148: 1113: 1109: 1082:, retrieved 1068: 1058: 1047:. Retrieved 1043: 1007: 1000: 980: 973: 952: 937: 917:renal pelvis 913: 898: 895:Avian kidney 885:blood plasma 855: 804: 764:renal pelvis 760:renal artery 733: 697:renal artery 686: 658: 623: 612: 571: 548: 531:Nephrostomes 516: 457: 435: 427:nephrostomes 408: 400: 373: 327: 324:Archinephros 318:Archinephros 313:Kidney forms 294: 267: 241: 213:archinephros 202: 155: 100: 44:electrolytes 27: 25: 21:Human kidney 4765:Major calyx 4760:Minor calyx 4553:Circulation 3769:10665/38147 3279:(1): 4–14. 959:dehydration 944:Nitrogenous 766:into large 619:mesonephros 545:Metanephros 488:metanephros 476:metanephros 450:Mesonephros 392:rudimentary 384:mesonephros 340:and united 274:marine fish 255:mesonephros 247:homeostasis 228:rudimentary 174:metanephros 170:mesonephros 111:terrestrial 72:homeostasis 40:vertebrates 4983:Categories 4711:Descending 4653:Glomerulus 4619:interlobar 4609:Vasa recta 4599:Renal vein 4574:interlobar 4391:2022-05-28 4386:Britannica 4161:2022-06-04 4066:2022-06-04 4061:Britannica 3986:2022-06-04 3778:9241571195 3638:2022-07-25 3535:2022-06-03 3530:Britannica 3484:2022-06-03 3479:Britannica 3345:: 151610. 2436:2022-05-21 2431:Britannica 2303:2022-05-21 2298:Britannica 2279:2022-05-20 2274:Britannica 2164:2022-05-21 2006:2022-05-10 2000:Britannica 1736:2022-05-09 1500:Q126036840 1335:: 151610. 1084:2022-05-09 1049:2022-05-09 1044:Britannica 965:References 881:hypertonic 869:glomerulus 792:monotremes 748:renal lobe 728:See also: 693:amphibians 630:peritoneum 484:marsupials 460:amphibians 415:glomerulus 370:Pronephros 364:Pronephros 358:caecilians 251:pronephros 182:anamniotes 166:pronephros 160:. Between 107:salt water 4936:prostatic 4905:External 4798:Mesangium 4678:Mesangium 4569:segmental 4560:Arteries 4360:0002-9106 4321:209509765 4313:2523-3971 4111:0085-2538 4027:1046-6673 3944:0022-0949 3818:1533-1601 3688:0363-6119 3596:233457191 3580:1661-5433 3377:223556080 3361:1618-0402 3293:1076-3139 3130:cite book 3089:cite book 3047:238792406 3039:0717-9502 2989:cite book 2936:1095-564X 2922:: 22–36. 2891:cite book 2837:1660-2129 2790:0012-1606 2642:1058-8388 2583:1096-3634 2569:: 31–38. 2536:0002-9513 2476:1469-7580 2402:1046-6673 2235:1664-042X 2056:1932-6203 1964:0931-041X 1917:0363-6119 1867:cite book 1832:208273879 1816:1558-4232 1727:"Nephron" 1660:2045-3701 1603:1660-2129 1544:2073-4409 1492:0003-1569 1409:1460-2385 1367:223556080 1351:0940-9602 1218:1557-7023 948:uric acid 927:, have a 682:uric acid 666:uric acid 632:) in the 500:anamniote 462:and most 388:mammalian 356:and some 354:hagfishes 342:laterally 270:chordates 238:Evolution 221:amphibian 217:bony fish 143:nephridia 113:life and 54:, remove 4921:Internal 4862:(female) 4668:Podocyte 4624:efferent 4589:afferent 4511:pyramids 4119:11473651 4043:12283763 4035:17251384 3952:11441026 3834:36069778 3826:22637735 3704:18147936 3696:11049855 3588:33915542 3369:33065247 2954:33333068 2845:24854639 2658:26815664 2650:18729228 2601:25194660 2494:28960296 2410:15647334 2253:22275903 2159:20614633 2141:StemBook 2074:27144443 2026:PLOS ONE 1982:20049614 1925:24068044 1824:31759442 1678:30349665 1619:13912502 1611:16554664 1562:26378582 1496:Wikidata 1417:25140012 1359:33065247 1226:30649320 1130:25140012 1040:"Kidney" 873:nephrons 708:necrosis 705:ischemic 574:nephrons 555:reptiles 551:amniotes 504:amniotes 480:reptiles 468:amniotes 411:nephrons 334:medially 298:reptiles 259:amniotes 232:lungfish 60:hormones 4888:Urethra 4878:Trigone 4839:Bladder 4821:Ureters 4636:Nephron 4614:arcuate 4579:arcuate 4543:Nephron 4506:Medulla 4489:Capsule 4469:Kidneys 4368:5434585 3903:7271189 2945:8052282 2853:7400339 2798:9268568 2592:4252735 2544:3189590 2485:5696127 2244:3258550 2065:4856328 2034:Bibcode 1973:3189493 1669:6192171 1553:4588047 929:bladder 925:ostrich 907:in the 865:soluble 835:rabbits 811:bovines 807:species 788:urethra 784:bladder 744:medulla 674:ammonia 646:Turtles 638:lizards 615:animals 598:urethra 563:mammals 539:mammals 527:medulla 492:mammals 207:of the 194:mammals 184:called 162:animals 158:nephron 135:tubules 123:mammals 119:classes 96:urethra 34:of the 28:kidneys 4994:Kidney 4946:spongy 4914:female 4595:Veins 4499:column 4494:Cortex 4484:Fascia 4477:Layers 4415:  4366:  4358:  4319:  4311:  4268:  4241:  4214:  4184:  4152:  4117:  4109:  4041:  4033:  4025:  3977:  3950:  3942:  3900:  3890:  3857:  3832:  3824:  3816:  3775:  3730:  3702:  3694:  3686:  3629:  3594:  3586:  3578:  3508:  3454:  3427:  3400:  3375:  3367:  3359:  3316:  3291:  3245:  3218:  3191:  3164:  3118:  3077:  3045:  3037:  2977:  2952:  2942:  2934:  2879:  2851:  2843:  2835:  2796:  2788:  2738:  2708:  2681:  2656:  2648:  2640:  2599:  2589:  2581:  2542:  2534:  2492:  2482:  2474:  2408:  2400:  2357:  2327:  2251:  2241:  2233:  2187:  2157:  2097:  2072:  2062:  2054:  1980:  1970:  1962:  1923:  1915:  1855:  1830:  1822:  1814:  1760:  1704:  1676:  1666:  1658:  1644:: 53. 1617:  1609:  1601:  1560:  1550:  1542:  1498:  1490:  1415:  1407:  1365:  1357:  1349:  1306:  1279:  1252:  1224:  1216:  1156:  1128:  1075:  1015:  988:  933:cloaca 921:ureter 909:pelvic 887:. The 847:otters 831:humans 800:cloaca 782:, and 780:ureter 776:pelvis 740:cortex 730:Kidney 654:cloaca 642:snakes 590:cloaca 582:ureter 561:, and 523:cortex 512:embryo 431:cloaca 419:coelom 396:larval 350:cloaca 338:coelom 224:larvae 209:embryo 151:coelom 141:, the 115:desert 94:, and 92:cloaca 84:ureter 32:organs 4523:Sinus 4317:S2CID 4039:S2CID 3830:S2CID 3700:S2CID 3592:S2CID 3373:S2CID 3043:S2CID 2849:S2CID 2654:S2CID 2219:: 2. 1828:S2CID 1615:S2CID 1522:Cells 1363:S2CID 901:birds 849:have 843:bears 790:. In 756:Blood 586:urine 559:birds 535:birds 478:. 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Index

Human kidney
organs
excretory system
vertebrates
electrolytes
osmoregulation
blood
metabolic waste products
hormones
renin
blood pressure
homeostasis
extracellular fluid
urine
ureter
urinary bladder
cloaca
urethra
fresh
salt water
terrestrial
desert
classes
mammals
fish
renal glomeruli
tubules
invertebrates
nephridia
metanephridia

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