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Muscular layer

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1792: 171: 513: 26: 1812: 306: 1252: 587: 142: 138: 134: 130: 126: 122: 118: 114: 110: 106: 102: 98: 94: 90: 86: 82: 78: 74: 382:, there are three layers to the muscular layer. Stomach contains an additional oblique muscle layer just interior to circular muscle layer. 1715: 299: 1710: 549: 409:, the smooth muscle orientation is opposite that of the GI tract. There is an inner longitudinal and an outer circular layer. 499:(myenteric nerve plexus) is found between longitudinal and circular muscle layers, it starts muscle contractions to initiate 292: 851: 609: 1245: 580: 745: 750: 1512: 1752: 1522: 1517: 1238: 573: 562: – Histology Learning System at Boston University — "Muscle Tissue: smooth muscle, muscularis externa" 1679: 1604: 1484: 1380: 456:, the fibres of the external longitudinal smooth muscle layer are collected into three longitudinal bands, the 1410: 925: 565: 1464: 1370: 402:
of the spermatic cord, there are three layers: inner longitudinal, middle circular, and outer longitudinal.
1722: 1782: 1502: 1101: 835: 467:(triple layered) and thus maximum peristalsis occurs in the stomach. Thinnest muscularis layer in the 1817: 1697: 1674: 1581: 488: 1529: 1405: 1339: 1159: 1154: 1149: 666: 553: 445: 1630: 1534: 1317: 940: 935: 930: 681: 676: 597: 418: 149: 69: 1732: 1385: 1177: 639: 197: 183: 559: 543: 537: 1594: 1030: 897: 644: 634: 250: 245: 8: 1757: 1702: 1459: 1454: 1390: 1375: 945: 649: 1791: 1742: 1425: 1219: 1076: 1020: 830: 659: 626: 1737: 1539: 1354: 1081: 875: 523: 434: 1813:
Knowledge articles incorporating text from the 20th edition of Gray's Anatomy (1918)
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in many organs in the vertebrate body, adjacent to the
1780: 374:
However, there are some exceptions to this pattern.
37:, showing the thick muscular layers surrounding the 413:The inner layer of the muscularis externa forms a 351:. The Latin, tunica muscularis, may also be used. 1260: 1804: 463:The thickest muscularis layer is found in the 1246: 581: 347:. It is responsible for gut movement such as 300: 483:The muscularis layer is responsible for the 1253: 1239: 588: 574: 546:- BioWeb at University of Wisconsin System 540:- BioWeb at University of Wisconsin System 307: 293: 24: 1805: 517:This article incorporates text in the 178:This article is one of a series on the 1234: 569: 475:, where minimum peristalsis occurs. 13: 14: 1829: 531: 1790: 511: 169: 544:Smooth muscle layers of the gut 538:Muscularis externa of the colon 1605:Extraglomerular mesangial cell 1485:Intraglomerular mesangial cell 1: 506: 359:It usually has two layers of 1465:Glomerular basement membrane 395:, rather than smooth muscle. 354: 7: 836:Enterochromaffin-like cells 478: 10: 1834: 1503:Proximal convoluted tubule 1698:Internal urethral orifice 1688: 1675:Median umbilical ligament 1639: 1621: 1582:Juxtaglomerular apparatus 1580: 1493: 1445: 1436: 1353: 1278: 1269: 1176: 1115: 1092: 1029: 1011: 1002: 970: 954: 916: 868: 859: 850: 733: 695: 617: 608: 560:Histology image: 11601ooa 389:, part of the externa is 148: 68: 56: 51: 46: 23: 18: 1530:Distal convoluted tubule 521:from the 20th edition of 417:at two locations of the 370:outer and "longitudinal" 1406:Peritubular capillaries 1160:External anal sphincter 1155:Intersphincteric groove 1150:Internal anal sphincter 667:Pterygomandibular raphe 497:Auerbach's nerve plexus 446:internal anal sphincter 1631:Ureteropelvic junction 1535:Collecting duct system 1318:medullary interstitium 941:Duodenojejunal flexure 936:Minor duodenal papilla 931:Major duodenal papilla 682:Pharyngobasilar fascia 677:Buccopharyngeal fascia 598:gastrointestinal tract 550:UIUC Histology Subject 489:segmental contractions 419:gastrointestinal tract 150:Anatomical terminology 1595:Juxtaglomerular cells 898:Enteroendocrine cells 485:peristaltic movements 184:Gastrointestinal wall 367:inner and "circular" 1758:Lacunae of Morgagni 1703:Urethral sphincters 831:Gastric chief cells 218:Longitudinal muscle 337:muscularis externa 333:muscularis propria 1778: 1777: 1617: 1616: 1613: 1612: 1540:Connecting tubule 1228: 1227: 1220:Muscularis mucosa 1172: 1171: 1168: 1167: 1082:epiploic appendix 998: 997: 926:Suspensory muscle 888:Intestinal glands 846: 845: 435:pyloric sphincter 339:) is a region of 317: 316: 251:Auerbach's plexus 246:Meissner's plexus 192:General structure 164: 163: 159: 63:tunica muscularis 1825: 1818:Membrane biology 1795: 1794: 1786: 1652:Vesical arteries 1475:Filtration slits 1460:Bowman's capsule 1443: 1442: 1276: 1275: 1255: 1248: 1241: 1232: 1231: 1102:Transverse folds 1059:Descending colon 1049:Transverse colon 1009: 1008: 963:No substructures 946:Brunner's glands 876:Intestinal villi 866: 865: 857: 856: 756:Angular incisure 672:Pharyngeal raphe 640:retropharyngeal 615: 614: 600:, excluding the 590: 583: 576: 567: 566: 515: 514: 493:alimentary canal 471:is found in the 469:alimentary canal 309: 302: 295: 173: 166: 165: 156:edit on Wikidata 153: 28: 16: 15: 1833: 1832: 1828: 1827: 1826: 1824: 1823: 1822: 1803: 1802: 1801: 1789: 1781: 1779: 1774: 1753:navicular fossa 1684: 1670:Detrusor muscle 1635: 1609: 1576: 1523:Thick ascending 1489: 1447:Renal corpuscle 1432: 1349: 1335:Cortical lobule 1265: 1261:Anatomy of the 1259: 1229: 1224: 1164: 1111: 1088: 1054:Splenic flexure 1044:Hepatic flexure 1039:Ascending colon 1025: 1004:Large intestine 994: 990:Microfold cells 985:Peyer's patches 980:Ileocecal valve 966: 950: 912: 861:Small intestine 842: 729: 691: 645:parapharyngeal 635:peripharyngeal 604: 596:Anatomy of the 594: 534: 512: 509: 481: 444:, it forms the 433:, it forms the 392:skeletal muscle 357: 329:muscular fibers 313: 284: 283: 264: 256: 255: 241: 233: 232: 213:Circular muscle 193: 160: 141: 137: 133: 129: 125: 121: 117: 113: 109: 105: 101: 97: 93: 89: 85: 81: 77: 42: 33:section of the 12: 11: 5: 1831: 1821: 1820: 1815: 1800: 1799: 1776: 1775: 1773: 1772: 1770:Urinary meatus 1767: 1766: 1765: 1763:urethral gland 1760: 1755: 1750: 1745: 1740: 1735: 1727: 1726: 1725: 1720: 1719: 1718: 1713: 1700: 1694: 1692: 1686: 1685: 1683: 1682: 1677: 1672: 1667: 1666: 1665: 1662:Vaginal artery 1659: 1654: 1645: 1643: 1637: 1636: 1634: 1633: 1627: 1625: 1619: 1618: 1615: 1614: 1611: 1610: 1608: 1607: 1602: 1597: 1592: 1586: 1584: 1578: 1577: 1575: 1574: 1569: 1564: 1559: 1554: 1549: 1548: 1547: 1545:Papillary duct 1542: 1532: 1527: 1526: 1525: 1520: 1518:Thin ascending 1515: 1505: 1499: 1497: 1491: 1490: 1488: 1487: 1482: 1477: 1472: 1467: 1462: 1457: 1451: 1449: 1440: 1434: 1433: 1431: 1430: 1429: 1428: 1423: 1418: 1413: 1408: 1403: 1395: 1394: 1393: 1388: 1383: 1378: 1373: 1368: 1359: 1357: 1351: 1350: 1348: 1347: 1342: 1337: 1332: 1327: 1322: 1321: 1320: 1315: 1305: 1304: 1303: 1293: 1288: 1282: 1280: 1273: 1267: 1266: 1263:urinary system 1258: 1257: 1250: 1243: 1235: 1226: 1225: 1223: 1222: 1217: 1212: 1210:Circular folds 1207: 1202: 1200:Muscular layer 1197: 1192: 1182: 1180: 1174: 1173: 1170: 1169: 1166: 1165: 1163: 1162: 1157: 1152: 1147: 1145:Pectinate line 1142: 1137: 1132: 1127: 1121: 1119: 1113: 1112: 1110: 1109: 1104: 1098: 1096: 1090: 1089: 1087: 1086: 1085: 1084: 1079: 1074: 1066: 1061: 1056: 1051: 1046: 1041: 1035: 1033: 1027: 1026: 1024: 1023: 1017: 1015: 1006: 1000: 999: 996: 995: 993: 992: 987: 982: 976: 974: 968: 967: 965: 964: 960: 958: 952: 951: 949: 948: 943: 938: 933: 928: 922: 920: 914: 913: 911: 910: 905: 900: 895: 890: 885: 884: 883: 872: 870: 863: 854: 848: 847: 844: 843: 841: 840: 839: 838: 833: 828: 826:Parietal cells 823: 821:Foveolar cells 818: 816:Pyloric glands 813: 808: 806:Cardiac glands 803: 801:Gastric glands 798: 790: 785: 783:Gastric mucosa 780: 775: 770: 765: 760: 759: 758: 753: 748: 739: 737: 731: 730: 728: 727: 722: 717: 716: 715: 710: 701: 699: 693: 692: 690: 689: 687:Pyriform sinus 684: 679: 674: 669: 664: 663: 662: 657: 652: 650:retrovisceral 647: 642: 637: 629: 623: 621: 612: 606: 605: 593: 592: 585: 578: 570: 564: 563: 557: 547: 541: 533: 532:External links 530: 524:Gray's Anatomy 508: 505: 480: 477: 450: 449: 438: 411: 410: 403: 396: 383: 372: 371: 368: 356: 353: 321:muscular layer 315: 314: 312: 311: 304: 297: 289: 286: 285: 282: 281: 276: 271: 265: 262: 261: 258: 257: 254: 253: 248: 242: 239: 238: 235: 234: 231: 230: 225: 220: 215: 210: 205: 200: 194: 191: 190: 187: 186: 180: 179: 175: 174: 162: 161: 152: 146: 145: 72: 66: 65: 60: 54: 53: 49: 48: 44: 43: 29: 21: 20: 19:Muscular layer 9: 6: 4: 3: 2: 1830: 1819: 1816: 1814: 1811: 1810: 1808: 1798: 1793: 1788: 1787: 1784: 1771: 1768: 1764: 1761: 1759: 1756: 1754: 1751: 1749: 1746: 1744: 1741: 1739: 1736: 1734: 1733:pre-prostatic 1731: 1730: 1729:Male urethra 1728: 1724: 1721: 1717: 1714: 1712: 1709: 1708: 1706: 1705: 1704: 1701: 1699: 1696: 1695: 1693: 1691: 1687: 1681: 1678: 1676: 1673: 1671: 1668: 1663: 1660: 1658: 1657:Vesical veins 1655: 1653: 1650: 1649: 1647: 1646: 1644: 1642: 1638: 1632: 1629: 1628: 1626: 1624: 1620: 1606: 1603: 1601: 1598: 1596: 1593: 1591: 1588: 1587: 1585: 1583: 1579: 1573: 1570: 1568: 1565: 1563: 1560: 1558: 1557:Renal papilla 1555: 1553: 1552:Tubular fluid 1550: 1546: 1543: 1541: 1538: 1537: 1536: 1533: 1531: 1528: 1524: 1521: 1519: 1516: 1514: 1511: 1510: 1509: 1508:Loop of Henle 1506: 1504: 1501: 1500: 1498: 1496: 1492: 1486: 1483: 1481: 1478: 1476: 1473: 1471: 1468: 1466: 1463: 1461: 1458: 1456: 1453: 1452: 1450: 1448: 1444: 1441: 1439: 1435: 1427: 1424: 1422: 1419: 1417: 1414: 1412: 1409: 1407: 1404: 1402: 1399: 1398: 1396: 1392: 1389: 1387: 1384: 1382: 1379: 1377: 1374: 1372: 1369: 1367: 1364: 1363: 1361: 1360: 1358: 1356: 1352: 1346: 1343: 1341: 1340:Medullary ray 1338: 1336: 1333: 1331: 1328: 1326: 1323: 1319: 1316: 1314: 1311: 1310: 1309: 1306: 1302: 1299: 1298: 1297: 1294: 1292: 1289: 1287: 1284: 1283: 1281: 1277: 1274: 1272: 1268: 1264: 1256: 1251: 1249: 1244: 1242: 1237: 1236: 1233: 1221: 1218: 1216: 1213: 1211: 1208: 1206: 1203: 1201: 1198: 1196: 1193: 1191: 1187: 1184: 1183: 1181: 1179: 1175: 1161: 1158: 1156: 1153: 1151: 1148: 1146: 1143: 1141: 1138: 1136: 1133: 1131: 1128: 1126: 1123: 1122: 1120: 1118: 1114: 1108: 1105: 1103: 1100: 1099: 1097: 1095: 1091: 1083: 1080: 1078: 1075: 1073: 1070: 1069: 1067: 1065: 1064:Sigmoid colon 1062: 1060: 1057: 1055: 1052: 1050: 1047: 1045: 1042: 1040: 1037: 1036: 1034: 1032: 1028: 1022: 1019: 1018: 1016: 1014: 1010: 1007: 1005: 1001: 991: 988: 986: 983: 981: 978: 977: 975: 973: 969: 962: 961: 959: 957: 953: 947: 944: 942: 939: 937: 934: 932: 929: 927: 924: 923: 921: 919: 915: 909: 906: 904: 901: 899: 896: 894: 891: 889: 886: 882: 879: 878: 877: 874: 873: 871: 867: 864: 862: 858: 855: 853: 849: 837: 834: 832: 829: 827: 824: 822: 819: 817: 814: 812: 811:Fundic glands 809: 807: 804: 802: 799: 797: 794: 793: 792:Microanatomy 791: 789: 788:Gastric folds 786: 784: 781: 779: 776: 774: 771: 769: 766: 764: 761: 757: 754: 752: 749: 747: 744: 743: 741: 740: 738: 736: 732: 726: 723: 721: 718: 714: 711: 709: 706: 705: 703: 702: 700: 698: 694: 688: 685: 683: 680: 678: 675: 673: 670: 668: 665: 661: 658: 656: 653: 651: 648: 646: 643: 641: 638: 636: 633: 632: 630: 628: 625: 624: 622: 620: 616: 613: 611: 607: 603: 599: 591: 586: 584: 579: 577: 572: 571: 568: 561: 558: 556: 555: 551: 548: 545: 542: 539: 536: 535: 529: 528: 525: 522: 520: 519:public domain 504: 502: 498: 494: 490: 486: 476: 474: 470: 466: 461: 459: 455: 447: 443: 439: 436: 432: 428: 424: 423: 422: 420: 416: 408: 404: 401: 397: 394: 393: 388: 385:In the upper 384: 381: 377: 376: 375: 369: 366: 365: 364: 362: 361:smooth muscle 352: 350: 346: 342: 338: 334: 330: 326: 325:muscular coat 322: 310: 305: 303: 298: 296: 291: 290: 288: 287: 280: 277: 275: 272: 270: 267: 266: 260: 259: 252: 249: 247: 244: 243: 237: 236: 229: 226: 224: 221: 219: 216: 214: 211: 209: 206: 204: 201: 199: 196: 195: 189: 188: 185: 182: 181: 177: 176: 172: 168: 167: 157: 151: 147: 144: 140: 136: 132: 128: 124: 120: 116: 112: 108: 104: 100: 96: 92: 88: 84: 80: 76: 73: 71: 67: 64: 61: 59: 55: 50: 45: 40: 36: 32: 27: 22: 17: 1743:intermediate 1648:Circulation 1590:Macula densa 1572:Renal pelvis 1495:Renal tubule 1386:interlobular 1366:Renal artery 1199: 1140:Anal sinuses 1130:Anal columns 908:Paneth cells 903:Goblet cells 869:Microanatomy 796:Gastric pits 660:prevertebral 552: 526: 516: 510: 482: 462: 451: 412: 400:vas deferens 390: 373: 358: 336: 332: 328: 324: 320: 318: 217: 212: 143:A09.4.02.027 139:A09.4.02.018 135:A09.3.06.003 131:A09.4.02.011 127:A09.3.05.009 123:A09.2.03.007 119:A09.1.04.010 115:A09.1.02.012 111:A08.3.01.010 107:A08.2.01.006 103:A08.1.05.010 99:A05.8.02.008 95:A05.7.04.009 91:A05.7.03.011 87:A05.7.01.004 83:A05.6.01.004 79:A05.5.01.021 75:A05.4.01.010 62: 31:Histological 1567:Major calyx 1562:Minor calyx 1355:Circulation 1135:Anal valves 1072:taenia coli 1068:Continuous 893:Enterocytes 742:Curvatures 704:Sphincters 501:peristalsis 491:in and the 458:teniae coli 349:peristalsis 52:Identifiers 1807:Categories 1513:Descending 1455:Glomerulus 1421:interlobar 1411:Vasa recta 1401:Renal vein 1376:interlobar 1190:Adventitia 1117:Anal canal 881:Microvilli 507:References 442:anal canal 279:Intestines 228:Adventitia 198:Epithelium 1738:prostatic 1707:External 1600:Mesangium 1480:Mesangium 1371:segmental 1362:Arteries 1205:Submucosa 1195:Subserosa 697:Esophagus 415:sphincter 387:esophagus 355:Structure 345:submucosa 269:Esophagus 208:Submucosa 1723:Internal 1664:(female) 1470:Podocyte 1426:efferent 1391:afferent 1313:pyramids 1021:Appendix 918:Duodenum 479:Function 240:Specific 1797:Anatomy 1690:Urethra 1680:Trigone 1641:Bladder 1623:Ureters 1438:Nephron 1416:arcuate 1381:arcuate 1345:Nephron 1308:Medulla 1291:Capsule 1271:Kidneys 1107:Ampulla 1077:haustra 956:Jejunum 778:Pylorus 746:greater 735:Stomach 631:Spaces 627:Muscles 619:Pharynx 465:stomach 452:In the 440:in the 431:stomach 429:of the 427:pylorus 425:in the 405:In the 398:In the 380:stomach 378:In the 274:Stomach 47:Details 1783:Portal 1748:spongy 1716:female 1397:Veins 1301:column 1296:Cortex 1286:Fascia 1279:Layers 1215:Mucosa 1186:Serosa 1094:Rectum 773:Fundus 763:Cardia 751:lesser 720:glands 655:danger 527:(1918) 495:. The 487:and 473:rectum 407:ureter 341:muscle 263:Organs 223:Serosa 203:Mucosa 35:ureter 1325:Sinus 1031:Colon 1013:Cecum 972:Ileum 852:Lower 713:lower 708:upper 610:Upper 602:mouth 454:colon 154:[ 58:Latin 39:lumen 1711:male 1330:Lobe 1178:Wall 1125:Anus 768:Body 725:crop 319:The 70:TA98 1809:: 1188:/ 554:23 503:. 460:. 421:: 363:: 335:, 331:, 327:, 1785:: 1254:e 1247:t 1240:v 589:e 582:t 575:v 448:. 437:. 323:( 308:e 301:t 294:v 158:] 41:.

Index


Histological
ureter
lumen
Latin
TA98
A05.4.01.010
A05.5.01.021
A05.6.01.004
A05.7.01.004
A05.7.03.011
A05.7.04.009
A05.8.02.008
A08.1.05.010
A08.2.01.006
A08.3.01.010
A09.1.02.012
A09.1.04.010
A09.2.03.007
A09.3.05.009
A09.4.02.011
A09.3.06.003
A09.4.02.018
A09.4.02.027
Anatomical terminology
edit on Wikidata

Gastrointestinal wall
Epithelium
Mucosa

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