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Extrapyramidal system

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131: 451: 25: 313:: Connects the brain stem nuclei of the vestibular system with the spinal cord. This allows posture, movement, and balance to be modulated on the basis of equilibrium information provided by the vestibular system. 263:
in the spinal cord that are involved in reflexes, locomotion, complex movements, and postural control. These tracts are in turn modulated by various parts of the central nervous system, including the
283:. All of these regulatory components can be considered part of the extrapyramidal system, in that they modulate motor activity without directly innervating motor neurons. 465:
Betts, J Gordon; Desaix, Peter; Johnson, Eddie; Johnson, Jody E; Korol, Oksana; Kruse, Dean; Poe, Brandon; Wise, James; Womble, Mark D; Young, Kelly A (July 22, 2023).
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or certain cranial nerve nuclei), whereas the extrapyramidal system centers on the modulation and regulation (indirect control) of anterior (ventral) horn cells.
293:: Conflicts between the motor commands sent by the cerebrum and body position information provided by the proprioceptors cause the cerebellum to stimulate the 307:, a diffuse region of gray matter in the brain stem, to the spinal cord. It also contributes to muscle tone and influences autonomic functions. 319:: This tract projects from the midbrain to the spinal cord and is important for postural movements that are driven by the superior colliculus. 1131: 1183: 1086: 1523: 1493: 694: 737: 89: 61: 1041: 1077: 1001: 986: 42: 508: 474: 68: 1006: 1532: 926: 883: 991: 1959: 1377: 1193: 433: 329: 75: 2020: 1148: 108: 600: 175: 57: 2122: 605: 595: 1725: 1264: 1168: 455: 297:
of the midbrain. The red nucleus then sends corrective commands to the spinal cord along the rubrospinal tract.
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Yuan, Rui; Di, Xin; Taylor, Paul A.; Gohel, Suril; Tsai, Yuan-Hsiung; Biswal, Bharat B. (30 April 2015).
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to distinguish it from the tracts of the motor cortex that reach their targets by traveling through the
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Medulla spinalis. (Extrapyramidal tracts are labeled as a group in red, at bottom left.)
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The extrapyramidal tracts include parts of the following:
464: 49:. Unsourced material may be challenged and removed. 207:causing involuntary actions. The system is called 374: 2114: 469:. Houston: OpenStax CNX. 14.3 Motor responses. 1035: 502: 1042: 1028: 509: 495: 129: 738:Posterior column-medial lemniscus pathway 400: 109:Learn how and when to remove this message 1929:Flocculonodular lobe/vestibulocerebellum 423: 238: 16:Connection between brain and spinal cord 1888:Intermediate hemisphere/spinocerebellum 2115: 2058:Ventral/anterior spinocerebellar tract 1987:Dorsal/posterior spinocerebellar tract 1023: 490: 279:, and different sensory areas of the 47:adding citations to reliable sources 18: 424:Costanzo, Linda S. (30 July 2010). 368: 342:, a rare extrapyramidal side effect 13: 1855:Lateral hemisphere/pontocerebellum 1378:Posterior limb of internal capsule 1194:Posterior limb of internal capsule 330:List of regions in the human brain 14: 2139: 1149:Posterior external arcuate fibers 601:Substantia gelatinosa of Rolando 454: This article incorporates 449: 176:Anatomical terms of neuroanatomy 23: 516: 34:needs additional citations for 417: 1: 2084:Rostral spinocerebellar tract 361: 311:lateral vestibulospinal tract 233:anterior (ventral) horn cells 695:Central gelatinous substance 381:Brain Structure and Function 7: 2030:Anterior lobe of cerebellum 323: 10: 2144: 1982:Posterior thoracic nucleus 1696:Thalamocortical radiations 1620:Thalamocortical radiations 639:Posterior thoracic nucleus 2039: 2016:Accessory cuneate nucleus 1958: 1947: 1934:Vestibulocerebellar tract 1843: 1768:Vestibulocerebellar tract 1755: 1746: 1711: 1635: 1575: 1566: 1542: 1512: 1482: 1456: 1418: 1409: 1361: 1354: 1303: 1277:Posterior parietal cortex 1244:Anterior white commissure 1224: 1210: 1182: 1130: 1085: 1076: 1069: 976: 964:Anterior white commissure 956: 899: 847: 840: 813: 756: 728: 721: 712: 682: 647: 634:Intermediolateral nucleus 624: 586: 577: 524: 393:10.1007/s00429-015-1018-7 247:are chiefly found in the 174: 162: 150: 145: 140: 128: 123: 1813:Inferior olivary nucleus 1700:Supplementary motor area 1624:Supplementary motor area 1434:Genu of internal capsule 1286:Spinomesencephalic tract 467:Anatomy & Physiology 1901:Cerebellothalamic tract 1382:Decussation of pyramids 1153:Internal arcuate fibers 1002:Posterior median sulcus 987:Anterior median fissure 335:Extrapyramidal symptoms 157:systema extrapyramidale 58:"Extrapyramidal system" 2123:Central nervous system 1835:Deep cerebellar nuclei 1802:Deep cerebellar nuclei 1793:Pontocerebellar fibers 1668:Subthalamic fasciculus 1660:Subthalamic fasciculus 1401:Neuromuscular junction 2021:Cuneocerebellar tract 1864:Dentatothalamic tract 1818:Olivocerebellar tract 1715:nigrostriatal pathway 1676:Lenticular fasciculus 1600:Lenticular fasciculus 1503:Vestibulospinal tract 1007:Posterolateral sulcus 588:Posterior grey column 356:Vestibulospinal tract 265:nigrostriatal pathway 245:extrapyramidal tracts 239:Extrapyramidal tracts 198:extrapyramidal system 124:Extrapyramidal system 1533:Reticulospinal tract 1444:Facial motor nucleus 1430:Primary motor cortex 1374:Primary motor cortex 1320:Spinoreticular tract 1161:Trigeminal lemniscus 1100:Meissner's corpuscle 992:Anterolateral sulcus 823:Spinoreticular tract 649:Anterior grey column 532:Cervical enlargement 458:available under the 346:Reticulospinal tract 301:reticulospinal tract 229:corticobulbar tracts 43:improve this article 1896:Reticular formation 1684:Thalamic fasciculus 1664:Subthalamic nucleus 1608:Thalamic fasciculus 1528:Reticular formation 1524:Vestibulocerebellum 1494:Vestibulocerebellum 1439:Corticobulbar tract 1387:Corticospinal tract 1325:Reticular formation 1315:Group C nerve fiber 1291:Superior colliculus 1256:Spinothalamic tract 1143:sensory decussation 828:Spino-olivary tract 626:Lateral grey column 261:lower motor neurons 249:reticular formation 225:corticospinal tract 2079:Golgi tendon organ 2053:Golgi tendon organ 1884:Interposed nucleus 1114:Cuneate fasciculus 1110:Gracile fasciculus 1096:Pacinian corpuscle 674:Gamma motor neuron 662:Alpha motor neuron 567:Terminal ventricle 537:Lumbar enlargement 2110: 2109: 2106: 2105: 2102: 2101: 2067:Cerebellar vermis 1996:Cerebellar vermis 1939:Vestibular nuclei 1925:Fastigial nucleus 1763:Vestibular nuclei 1742: 1741: 1738: 1737: 1680:Ansa lenticularis 1604:Ansa lenticularis 1562: 1561: 1555:โ†’ muscles of neck 1552:Tectospinal tract 1498:Vestibular nuclei 1473:Rubrospinal tract 1350: 1349: 1346: 1345: 1273:Postcentral gyrus 1236:Free nerve ending 1206: 1205: 1198:Postcentral gyrus 1017: 1016: 977:External features 972: 971: 952: 951: 889:Hypothalamospinal 836: 835: 708: 707: 476:978-1-947172-04-3 351:Tectospinal tract 317:tectospinal tract 291:rubrospinal tract 277:vestibular nuclei 200:is a part of the 190: 189: 185: 119: 118: 111: 93: 2135: 1956: 1955: 1753: 1752: 1719: 1642: 1582: 1573: 1572: 1517: 1487: 1461: 1423: 1416: 1415: 1359: 1358: 1337:Cingulate cortex 1261:Spinal lemniscus 1222: 1221: 1157:Medial lemniscus 1105:Posterior column 1083: 1082: 1074: 1073: 1044: 1037: 1030: 1021: 1020: 845: 844: 726: 725: 719: 718: 606:Nucleus proprius 596:Marginal nucleus 584: 583: 542:Conus medullaris 525:General features 511: 504: 497: 488: 487: 481: 480: 453: 446: 440: 439: 421: 415: 414: 404: 387:(4): 1971โ€“1984. 372: 305:reticular system 221:pyramidal tracts 182:edit on Wikidata 179: 133: 121: 120: 114: 107: 103: 100: 94: 92: 51: 27: 19: 2143: 2142: 2138: 2137: 2136: 2134: 2133: 2132: 2113: 2112: 2111: 2098: 2035: 2008:muscle spindles 1974:muscle spindles 1961: 1951:Spinocerebellar 1949: 1943: 1851:Dentate nucleus 1839: 1734: 1712: 1707: 1636: 1631: 1576: 1558: 1547:Midbrain tectum 1538: 1513: 1508: 1483: 1478: 1457: 1452: 1419: 1405: 1342: 1299: 1295:Midbrain tectum 1215: 1202: 1178: 1145:/arcuate fibers 1126: 1122:Cuneate nucleus 1118:Gracile nucleus 1065: 1048: 1018: 1013: 968: 948: 922:Vestibulospinal 918:Extrapyramidal 895: 832: 809: 766:Spinocerebellar 752: 704: 700:Gray commissure 678: 643: 620: 616:Rexed lamina VI 573: 547:Filum terminale 520: 515: 485: 484: 477: 447: 443: 436: 422: 418: 373: 369: 364: 340:Rabbit syndrome 326: 303:: connects the 281:cerebral cortex 241: 186: 136: 115: 104: 98: 95: 52: 50: 40: 28: 17: 12: 11: 5: 2141: 2131: 2130: 2125: 2108: 2107: 2104: 2103: 2100: 2099: 2097: 2096: 2071: 2070: 2045: 2043: 2037: 2036: 2034: 2033: 2000: 1999: 1966: 1964: 1962:proprioception 1953: 1948:Bidirectional: 1945: 1944: 1942: 1941: 1921: 1920: 1880: 1879: 1847: 1845: 1841: 1840: 1838: 1837: 1809: 1808: 1788:Pontine nuclei 1784: 1783: 1759: 1757: 1750: 1744: 1743: 1740: 1739: 1736: 1735: 1733: 1732: 1722: 1720: 1709: 1708: 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807: 802: 800:Posterolateral 797: 796: 795: 790: 780: 779: 778: 773: 762: 760: 754: 753: 751: 750: 745: 740: 734: 732: 723: 716: 710: 709: 706: 705: 703: 702: 697: 692: 686: 684: 680: 679: 677: 676: 671: 670: 669: 667:Onuf's nucleus 659: 653: 651: 645: 644: 642: 641: 636: 630: 628: 622: 621: 619: 618: 613: 611:Rexed lamina V 608: 603: 598: 592: 590: 581: 575: 574: 572: 571: 570: 569: 559: 554: 549: 544: 539: 534: 528: 526: 522: 521: 514: 513: 506: 499: 491: 483: 482: 475: 441: 435:978-0781798761 434: 416: 366: 365: 363: 360: 359: 358: 353: 348: 343: 337: 332: 325: 322: 321: 320: 314: 308: 298: 240: 237: 209:extrapyramidal 188: 187: 178: 172: 171: 166: 160: 159: 154: 148: 147: 143: 142: 138: 137: 134: 126: 125: 117: 116: 99:September 2014 31: 29: 22: 15: 9: 6: 4: 3: 2: 2140: 2129: 2126: 2124: 2121: 2120: 2118: 2094: 2090: 2086: 2085: 2080: 2076: 2073: 2072: 2068: 2064: 2060: 2059: 2054: 2050: 2047: 2046: 2044: 2042: 2038: 2031: 2027: 2023: 2022: 2017: 2013: 2009: 2005: 2002: 2001: 1997: 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1435: 1431: 1428: 1427: 1425: 1422: 1417: 1414: 1412: 1408: 1402: 1398: 1396: 1392: 1388: 1383: 1379: 1375: 1372: 1369: 1368: 1366: 1364: 1360: 1357: 1353: 1338: 1334: 1330: 1326: 1322: 1321: 1316: 1312: 1311: 1309: 1306: 1302: 1298: 1296: 1292: 1288: 1287: 1278: 1274: 1270: 1266: 1262: 1258: 1257: 1254: 1250: 1245: 1241: 1240:A delta fiber 1237: 1233: 1232: 1230: 1227: 1223: 1220: 1218: 1213: 1212:Anterolateral 1209: 1199: 1195: 1191: 1190: 1188: 1185: 1181: 1174: 1170: 1166: 1162: 1158: 1154: 1150: 1146: 1144: 1139: 1138: 1136: 1133: 1129: 1123: 1119: 1115: 1111: 1107: 1106: 1101: 1097: 1094: 1093: 1091: 1088: 1084: 1081: 1079: 1075: 1072: 1068: 1064: 1060: 1059:neural tracts 1056: 1052: 1045: 1040: 1038: 1033: 1031: 1026: 1025: 1022: 1008: 1005: 1003: 1000: 999: 997: 993: 990: 988: 985: 984: 982: 981: 979: 975: 965: 962: 961: 959: 955: 943: 940: 938: 935: 933: 930: 928: 925: 923: 920: 919: 917: 913: 910: 909: 907: 906: 904: 902: 898: 890: 887: 885: 882: 880: 877: 875: 872: 871: 870: 867: 863: 860: 859: 858: 857:Corticospinal 855: 854: 852: 850: 846: 843: 839: 829: 826: 824: 821: 820: 818: 816: 812: 806: 803: 801: 798: 794: 791: 789: 786: 785: 784: 783:Spinothalamic 781: 777: 774: 772: 769: 768: 767: 764: 763: 761: 759: 755: 749: 746: 744: 741: 739: 736: 735: 733: 731: 727: 724: 720: 717: 715: 711: 701: 698: 696: 693: 691: 690:Rexed laminae 688: 687: 685: 681: 675: 672: 668: 665: 664: 663: 660: 658: 655: 654: 652: 650: 646: 640: 637: 635: 632: 631: 629: 627: 623: 617: 614: 612: 609: 607: 604: 602: 599: 597: 594: 593: 591: 589: 585: 582: 580: 576: 568: 565: 564: 563: 562:Central canal 560: 558: 555: 553: 550: 548: 545: 543: 540: 538: 535: 533: 530: 529: 527: 523: 519: 512: 507: 505: 500: 498: 493: 492: 489: 478: 472: 468: 463: 461: 457: 452: 445: 437: 431: 427: 420: 412: 408: 403: 398: 394: 390: 386: 382: 378: 371: 367: 357: 354: 352: 349: 347: 344: 341: 338: 336: 333: 331: 328: 327: 318: 315: 312: 309: 306: 302: 299: 296: 292: 289: 288: 287: 284: 282: 278: 274: 270: 269:basal ganglia 266: 262: 259:, and target 258: 254: 250: 246: 236: 234: 230: 226: 222: 218: 214: 210: 206: 203: 199: 195: 183: 177: 173: 170: 167: 165: 161: 158: 155: 153: 149: 144: 139: 132: 127: 122: 113: 110: 102: 91: 88: 84: 81: 77: 74: 70: 67: 63: 60: โ€“  59: 55: 54:Find sources: 48: 44: 38: 37: 32:This article 30: 26: 21: 20: 2128:Motor system 2082: 2056: 2019: 1985: 1932: 1918:Motor cortex 1899: 1877:Motor cortex 1862: 1816: 1806:Granule cell 1791: 1781:Granule cell 1766: 1713: 1704:Motor cortex 1648:Motor cortex 1638: 1628:Motor cortex 1588:Motor cortex 1578: 1550: 1531: 1514: 1501: 1484: 1471: 1458: 1437: 1420: 1410: 1385: 1370: 1318: 1284: 1282: 1247: 1141: 1103: 868: 714:White matter 579:Grey columns 552:Cauda equina 466: 448: 444: 425: 419: 384: 380: 370: 285: 244: 242: 208: 202:motor system 197: 191: 156: 105: 96: 86: 79: 72: 65: 53: 41:Please help 36:verification 33: 1960:Unconscious 1906:Red nucleus 1468:Red nucleus 1055:spinal cord 942:Olivospinal 937:Raphespinal 932:Tectospinal 879:Raphespinal 874:Rubrospinal 805:Spinotectal 657:Interneuron 518:Spinal cord 295:red nucleus 146:Identifiers 2117:Categories 2093:Cerebellum 2075:upper limb 2049:lower limb 2041:Reflex arc 2004:upper limb 1970:lower limb 1827:Hemisphere 1777:Cerebellum 1748:Cerebellar 1626:) โ†’ 5ยฐ ( 1515:extension: 1485:extension: 426:Physiology 362:References 273:cerebellum 164:NeuroNames 69:newspapers 1702:) โ†’ 7ยฐ ( 1639:indirect: 1363:Pyramidal 1063:fasciculi 730:Posterior 460:CC BY 4.0 2081:) โ†’ 2ยฐ ( 2055:) โ†’ 2ยฐ ( 2014:) โ†’ 2ยฐ ( 1980:) โ†’ 2ยฐ ( 1910:Thalamus 1869:Thalamus 1844:Efferent 1756:Afferent 1730:Striatum 1694:) โ†’ 6ยฐ ( 1692:Thalamus 1674:) โ†’ 5ยฐ ( 1666:) โ†’ 4ยฐ ( 1658:) โ†’ 3ยฐ ( 1654:) โ†’ 2ยฐ ( 1652:Striatum 1618:) โ†’ 4ยฐ ( 1616:Thalamus 1598:) โ†’ 3ยฐ ( 1594:) โ†’ 2ยฐ ( 1592:Striatum 1459:flexion: 1421:flexion: 1395:Anterior 1371:flexion: 1335:) โ†’ 3ยฐ ( 1333:Thalamus 1327:) โ†’ 2ยฐ ( 1275:) โ†’ 4ยฐ ( 1271:) โ†’ 3ยฐ ( 1269:Thalamus 1253:Anterior 1242:) โ†’ 2ยฐ ( 1228:/lateral 1165:Thalamus 983:Ventral 912:Anterior 901:Anterior 815:Anterior 793:anterior 557:Meninges 462:license. 411:25924563 324:See also 213:pyramids 1898:, or โ†’ 1579:direct: 1391:Lateral 1307:/medial 1249:Lateral 1070:Sensory 998:Dorsal 862:Lateral 849:Lateral 788:lateral 776:ventral 758:Lateral 748:Cuneate 743:Gracile 722:Sensory 428:. LWW. 402:6363530 257:medulla 251:of the 217:medulla 215:of the 205:network 194:anatomy 141:Details 83:scholar 2077:โ†’ 1ยฐ ( 2051:โ†’ 1ยฐ ( 2006:โ†’ 1ยฐ ( 1972:โ†’ 1ยฐ ( 771:dorsal 473:  432:  409:  399:  275:, the 271:, the 267:, the 219:. The 196:, the 85:  78:  71:  64:  56:  1355:Motor 1051:Brain 841:Motor 683:Other 180:[ 152:Latin 90:JSTOR 76:books 1916:) โ†’ 1875:) โ†’ 1646:1ยฐ ( 1586:1ยฐ ( 1313:1ยฐ ( 1305:Slow 1283:2ยฐ ( 1251:and 1234:1ยฐ ( 1226:Fast 1217:pain 1155:) โ†’ 1116:) โ†’ 1078:DCML 1061:and 1053:and 957:Both 471:ISBN 456:text 430:ISBN 407:PMID 255:and 253:pons 243:The 227:and 169:2070 62:news 2089:ICP 2063:SCP 2026:ICP 2012:DRG 1992:ICP 1978:DRG 1927:in 1892:SCP 1886:in 1859:SCP 1853:in 1823:ICP 1815:โ†’ 1798:MCP 1773:ICP 1690:of 1672:GPi 1656:GPe 1614:of 1596:GPi 1496:โ†’ 1331:of 1293:of 1267:of 1265:VPL 1173:VPM 1169:VPL 397:PMC 389:doi 385:221 192:In 45:by 2119:: 2091:โ†’ 2087:โ†’ 2065:โ†’ 2061:โ†’ 2028:โ†’ 2024:โ†’ 2018:โ†’ 2010:โ†’ 1994:โ†’ 1990:โ†’ 1984:โ†’ 1976:โ†’ 1937:โ†’ 1931:โ†’ 1914:VL 1908:โ†’ 1904:โ†’ 1894:โ†’ 1890:โ†’ 1873:VL 1867:โ†’ 1861:โ†’ 1857:โ†’ 1833:โ†’ 1829:โ†’ 1825:โ†’ 1821:โ†’ 1804:โ†’ 1800:โ†’ 1796:โ†’ 1790:โ†’ 1779:โ†’ 1775:โ†’ 1771:โ†’ 1765:โ†’ 1728:โ†’ 1698:โ†’ 1688:VL 1686:โ†’ 1682:โ†’ 1670:โ†’ 1662:โ†’ 1650:โ†’ 1622:โ†’ 1612:VL 1610:โ†’ 1606:โ†’ 1590:โ†’ 1549:โ†’ 1530:โ†’ 1526:โ†’ 1500:โ†’ 1470:โ†’ 1446:โ†’ 1442:โ†’ 1436:โ†’ 1432:โ†’ 1399:โ†’ 1393:, 1384:โ†’ 1380:โ†’ 1376:โ†’ 1329:MD 1323:โ†’ 1317:โ†’ 1297:) 1289:โ†’ 1263:โ†’ 1259:โ†’ 1246:โ†’ 1238:โ†’ 1196:โ†’ 1192:โ†’ 1184:3ยฐ 1171:, 1163:โ†’ 1151:, 1140:โ†’ 1132:2ยฐ 1102:โ†’ 1087:1ยฐ 1057:: 405:. 395:. 383:. 379:. 2095:) 2069:) 2032:) 1998:) 1912:( 1871:( 1717:: 1706:) 1678:/ 1630:) 1602:/ 1397:) 1389:( 1339:) 1279:) 1214:/ 1186:: 1175:) 1167:( 1159:/ 1147:( 1134:: 1120:/ 1112:/ 1108:( 1098:/ 1089:: 1043:e 1036:t 1029:v 510:e 503:t 496:v 479:. 438:. 413:. 391:: 223:( 184:] 112:) 106:( 101:) 97:( 87:ยท 80:ยท 73:ยท 66:ยท 39:.

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Latin
NeuroNames
2070
Anatomical terms of neuroanatomy
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anatomy
motor system
network
pyramids
medulla
pyramidal tracts
corticospinal tract
corticobulbar tracts
anterior (ventral) horn cells
reticular formation
pons
medulla
lower motor neurons

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