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being the best-known version. Yet they do have cartilaginous tissue in their body, even if it is not mineralized, especially in the head, where it forms a primitive cranium. The endoskeleton gives shape, support, and protection to the body and provides a means of locomotion.
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An endoskeleton is a skeleton that is on the inside of a body, like humans, dogs, or some fish. The endoskeleton develops within the skin or in the deeper body tissues. The vertebrate endoskeleton is basically made up of two types of tissues
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and cartilage. The notochord in most vertebrates is replaced by the vertebral column and cartilage is replaced by bone in most adults. In three
933:), but often serves as an attachment site for muscle and a mechanism for transmitting muscular forces. A true endoskeleton is derived from
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is present in echinoderms and chordates. The poriferan "skeleton" consists of microscopic calcareous or siliceous
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the skeleton rather than within it. Being more centralized in structure also means more compact
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of many invertebrates, endoskeletons allow much larger overall body sizes for the same skeletal
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network. The
Coleoidea do not have a true endoskeleton in the evolutionary sense; there, a
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Clicking on a skeleton in the picture causes the browser to load the appropriate article
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rather than to give structural support, and their body shape is largely maintained by
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688:(From Greek ἔνδον, éndon = "within", "inner" + σκελετός, skeletos = "skeleton") is a
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also have evolved a form of endoskeletons made of diffuse meshworks of
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901:). During early embryonic development the endoskeleton is composed of
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929:. An endoskeleton may function purely for support (as in the case of
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into several sorts of internal structure, the "cuttlebone" of
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of animals, endoskeletons of various complexity are found:
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872:. The external nature of muscle attachments also allows
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to transmit force and allow movements and locomotion.
1181:. University of Chicago Press. pp. 192–236.
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720:, and provide anchoring attachment sites for
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1204:"The Development and Evolution of Cartilage"
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29:
27:Internal support structure of an animal
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1243:
1201:
1178:Hyman's Comparative Vertebrate Anatomy
1175:Hyman, Libbie Henrietta (1992-09-15).
1174:
738:with endoskeletons (made of mostly
24:
1216:10.1016/b978-0-12-809633-8.90770-2
25:
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1208:Reference Module in Life Sciences
1132:The silica spicule skeleton of a
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1060:
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639:
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1036:Booth Museum of Natural History
403:microbial calcite precipitation
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1168:
777:calcite endoskeleton known as
13:
1:
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363:marine biogenic calcification
880:, as well as more versatile
7:
1144:
887:
849:, making it easier for the
837:, as most soft tissues and
734:are the predominant animal
592:Biomineralising polychaetes
358:amorphous calcium carbonate
44:Part of a series related to
10:
1282:
1202:Gillis, J. Andrew (2019),
624:Burgess Shale preservation
1116:The dermal ossicles of a
708:. Endoskeletons serve as
586:Cupriavidus metallidurans
730:and the closely related
704:and usually composed of
307:Teeth, scales, tusks etc
796:) have an internalized
368:calcareous nannofossils
164:Choanoflagellate lorica
1018:
696:) on the inside of an
557:Magnetotactic bacteria
382:oolitic aragonite sand
240:scaly-foot snail shell
38:
1016:
33:
1156:Hydrostatic skeleton
1134:Venus' flower basket
1052:skeleton of various
878:muscle architectures
861:, as well as higher
763:structural elements
284:Vertebrate skeleton
74:Mineralized tissues
1073:cartilaginous fish
1067:The skeleton of a
1019:
851:circulatory system
710:structural support
706:mineralized tissue
448:diatomaceous earth
414:Great Calcite Belt
331:Scale microfossils
324:otolithic membrane
235:small shelly fauna
208:echinoderm stereom
84:Biocrystallization
39:
34:Endoskeleton of a
1225:978-0-12-809633-8
1188:978-0-226-87013-7
876:and more diverse
682:
681:
612:permineralization
597:Mineral nutrients
522:Mineral evolution
191:foraminifera test
50:Biomineralization
16:(Redirected from
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1090:endoskeleton of
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882:range of motions
829:Compared to the
732:cephalochordates
722:skeletal muscles
718:mechanical loads
690:structural frame
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562:Magnetoreception
542:Ballast minerals
137:Cephalopod shell
132:Brachiopod shell
79:Remineralisation
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1261:Skeletal system
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228:gastropod shell
196:testate amoebae
186:diatom frustule
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535:immobilization
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252:Sponge spicule
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919:Echinodermata
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824:hydroskeleton
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748:invertebrates
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607:Fossilization
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547:Magnetofossil
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387:aragonite sea
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350:Calcification
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271:Endoskeletons
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213:mollusc shell
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171:Protist shell
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1256:Biomechanics
1229:, retrieved
1210:, Elsevier,
1207:
1197:
1177:
1170:
1138:glass sponge
1091:
891:
842:
831:exoskeletons
828:
746:), although
726:
702:soft tissues
686:endoskeleton
685:
683:
617:petrifaction
584:
572:
567:Microfossils
314:Limpet teeth
294:Ossification
289:Bone mineral
270:
223:chiton shell
108:Exoskeletons
89:Biointerface
18:Endoskeletal
1151:Exoskeleton
954:exoskeleton
786:cephalopods
771:echinoderms
728:Vertebrates
552:Magnetosome
495:phosphorite
461:Other forms
409:calcite sea
176:coccosphere
120:exoskeleton
1245:Categories
1231:2023-10-03
1162:References
1050:Fossilized
961:cuttlefish
935:mesodermal
816:cuttlebone
794:cuttlefish
147:cuttlebone
116:Arthropod
1102:lancelets
1088:notochord
1054:dinosaurs
927:Coleoidea
903:notochord
899:cartilage
859:oxygenate
810:known as
803:/calcite-
801:aragonite
798:vestigial
744:cartilage
573:engrailed
490:Phosphate
483:oil shale
377:Aragonite
181:coccolith
36:swordfish
1145:See also
1118:starfish
943:spicules
939:skeleton
923:Porifera
915:Chordata
911:subclass
909:and one
888:Overview
868:against
820:buoyancy
779:ossicles
767:spicules
750:such as
712:against
694:skeleton
645:Category
526:In soil
478:alginite
468:Bone bed
203:Seashell
110:(shells)
1266:Zoology
957:evolved
951:mollusk
947:spongin
931:sponges
874:thicker
866:density
855:perfuse
843:outside
812:gladius
783:coleoid
781:. Some
773:have a
765:called
756:calcite
752:sponges
714:gravity
515:Related
473:Kerogen
398:Calcite
319:Otolith
152:gladius
125:cuticle
94:Biofilm
67:General
1222:
1185:
925:, and
870:stress
863:tissue
847:volume
839:organs
805:chitin
790:squids
775:dermal
769:, and
760:silica
698:animal
643:
502:Pyrena
159:Lorica
945:or a
907:phyla
808:shell
736:clade
580:Druse
275:bones
218:nacre
1220:ISBN
1183:ISBN
1136:, a
1096:, a
1086:The
1071:, a
897:and
895:bone
857:and
835:mass
792:and
740:bone
716:and
575:gene
336:Tusk
257:Test
1212:doi
853:to
814:or
684:An
1247::
1218:,
1206:,
1030:A
921:,
917:,
884:.
826:.
1214::
1191:.
1104:)
1100:(
893:(
788:(
758:/
692:(
673:e
666:t
659:v
277:)
273:(
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