40:
52:
641:
or hemiplegia. While symptoms of weakness due to an isolated lesion of the posterior limb can initially be severe, recovery of motor function is sometimes possible due to spinal projections of premotor cortical regions that are contained more rostrally in the internal capsule.
863:
587:
The internal capsule provides passage to ascending and descending fibres running to and from the cerebral cortex. Fibers include frontopontine fibers from the frontal lobe to the pontine nuclei;
856:
1364:
849:
627:
Due to the orderly somatotropic arrangement of elements of the posterior limb of the internal capsule, small lesions can produce selective functional deficits.
319:
that mainly govern muscle motion of the head and face. The geniculate fibers originate in the motor cortex, and after passing downward through the base of the
150:
126:
736:
637:
The primary motor cortex sends its axons through the posterior limb of the internal capsule. Lesions, therefore, result in a contralateral
240:
The internal capsule is V-shaped in transection forming an anterior and posterior limb, with the angle between them called the genu.
611:
supply a large part of the internal capsule. These small vessels are particularly vulnerable to narrowing in the setting of chronic
826:
522:
The sublenticular part is beneath the lentiform nucleus, and contains fibers connecting with the temporal lobe. These include the
519:(which carry auditory information) also pass in the retrolenticular internal capsule, but most are in the sublenticular part.
202:
788:
746:
719:
709:
450:(in an anteroposterior somatotropic arrangement), as well as corticorubral fibres (passing from the frontal lobe to the
1027:
572:
538:
The superior parts of both the anterior and posterior limbs, and the genu of the internal capsule are supplied by the
1017:
841:
157:
816:
17:
1119:
145:
435:) is the portion of the internal capsule posterior to the genu. It is situated between the thalamus and the
550:
1114:
588:
504:
376:
363:
608:
561:
516:
101:
1203:
1022:
554:
84:
1152:
955:
565:
539:
367:
27:
White matter structure situated in the inferomedial part of each cerebral hemisphere of the brain
571:
As in many parts of the body, some degree of variation in the blood supply exists. For example,
1329:
1221:
1147:
1083:
1061:
960:
543:
133:
121:
1324:
1245:
1191:
1076:
527:
682:
405:
324:
316:
248:
191:
187:
299:
is the bend, or flexure in the V of the internal capsule. It is formed by fibers from the
8:
1339:
1250:
1066:
631:
596:
592:
447:
443:
300:
252:
244:
206:
44:
Horizontal section of right cerebral hemisphere. (Capsula interna labeled at upper left.)
1287:
1282:
1277:
1272:
941:
834:
523:
461:
308:
871:
807:
247:
constitutes a large part of the internal capsule, carrying motor information from the
1159:
1071:
1005:
936:
784:
742:
715:
690:
483:
465:
436:
409:
356:
320:
304:
268:
1226:
1048:
931:
651:
284:
1196:
1174:
1142:
1053:
1032:
950:
922:
912:
656:
512:
472:
396:
352:
234:
230:
218:
198:
114:
89:
1334:
1299:
1124:
1097:
1041:
576:
493:
476:
413:
387:
260:
1358:
1294:
886:
873:
681:
Emos, Marc
Christopher; Suheb, Mahammed Khan; Agarwal, Sanjeev (2022-06-13).
487:
332:
264:
214:
138:
287:, and consists of three parts: the genu, anterior limb, and posterior limb.
39:
1316:
1213:
1134:
997:
694:
612:
380:
371:
312:
179:
408:
passing from the frontal lobe through the medial fifth of the base of the
1267:
1259:
1240:
1183:
1106:
895:
877:
638:
451:
328:
256:
183:
708:
Schmahmann, Jeremy D.; Schmahmann, Jeremy; Pandya, Deepak (2009-02-11).
820:
616:
96:
163:
1306:
983:
811:
978:
904:
508:
400:
259:. Above the basal ganglia the corticospinal tract is a part of the
222:
108:
917:
630:
Lesions of the genu of the internal capsule affect fibers of the
391:
226:
738:
Gray's
Anatomy E-Book: The Anatomical Basis of Clinical Practice
808:
Stained brain slice images which include the "internal capsule"
579:, occasionally supply the inferior half of the posterior limb.
442:
The anterior half of the posterior limb contains fibers of the
233:. It also separates the caudate nucleus and the putamen in the
492:
Fibers that pass from the occipital and temporal lobes to the
783:(26th ed.). New York: McGraw-Hill Medical. p. 145.
210:
72:
351:) is situated in front of the genu, between the head of the
283:
The internal capsule is V-shaped when cut horizontally in a
560:
The inferior half of the posterior limb is supplied by the
549:
The inferior half of the anterior limb is supplied via the
464:
passing from the posterolateral nucleus of thalamus to the
272:
194:
707:
51:
237:, a brain region involved in motor and reward pathways.
619:
or intraparenchymal haemorrhage due to vessel rupture.
503:
contains fibers from the optic system, coming from the
475:, from the lower visual centers to the cortex of the
457:
The posterior third of the posterior limb contains:
1356:
680:
468:(in an anteroposterior somatotropic arrangement)
1365:Rostral basal ganglia and associated structures
595:from the cortex to the medulla oblongata, and
542:, which are branches of the M1 segment of the
275:it is referred to as the corticospinal tract.
263:. Below the basal ganglia the tract is called
213:. It carries information past the subcortical
857:
774:
772:
770:
768:
766:
764:
762:
760:
758:
386:Transversely oriented fibers connecting the
676:
674:
672:
201:. The internal capsule is situated in the
864:
850:
755:
454:) that accompany the corticospinal tract.
303:. The fibers in this region are named the
50:
38:
734:
669:
602:
14:
1357:
778:
399:fibers connecting the cortex with the
845:
831:Roche Lexicon - illustrated navigator
511:. More posteriorly, this becomes the
331:and end in the motor nuclei of the
24:
615:and can result in small, punctate
25:
1376:
801:
422:
217:. As it courses it separates the
714:. Oxford University Press, USA.
683:"Neuroanatomy, Internal Capsule"
622:
338:
158:Anatomical terms of neuroanatomy
735:Standring, Susan (2015-09-25).
533:
827:"Anatomy diagram: 13048.000-2"
728:
701:
383:to the lateral thalamic nuclei
13:
1:
1120:Anterior perforated substance
662:
741:. Elsevier Health Sciences.
575:, which are branches of the
347:of the internal capsule (or
278:
7:
779:Waxman, Stephen G. (2009).
711:Fiber Pathways of the Brain
645:
582:
564:, which is a branch of the
553:, which is a branch of the
551:recurrent artery of Heubner
462:Third-order sensory neurons
10:
1381:
1115:Anterior olfactory nucleus
833:. Elsevier. Archived from
589:thalamocortical radiations
573:thalamoperforator arteries
505:lateral geniculate nucleus
482:Acoustic fibers, from the
1315:
1258:
1239:
1212:
1182:
1172:
1133:
1105:
1096:
996:
971:
903:
894:
885:
880:and associated structures
609:lenticulostriate arteries
562:anterior choroidal artery
540:lenticulostriate arteries
517:medial geniculate nucleus
156:
144:
132:
120:
107:
95:
83:
71:
66:
61:
49:
37:
32:
1204:Nucleus of diagonal band
555:anterior cerebral artery
431:of internal capsule (or
182:structure, as a two-way
1153:Lateral olfactory stria
566:internal carotid artery
515:. Some fibers from the
418:Thalamic pontine fibers
368:lateral thalamic nuclei
335:of the opposite side.
290:
1222:Diagonal band of Broca
1148:Medial olfactory stria
1084:Subthalamic fasciculus
1062:Pallidothalamic tracts
544:middle cerebral artery
377:Corticothalamic fibres
364:Thalamocortical fibers
1246:Hippocampal formation
1192:Substantia innominata
1077:Lenticular fasciculus
781:Clinical Neuroanatomy
603:Clinical significance
528:temporopontine fibers
597:corticospinal fibers
593:corticobulbar fibers
501:retrolenticular part
406:Frontopontine fibers
325:cerebrospinal fibers
317:cranial nerve nuclei
249:primary motor cortex
1340:Schaffer collateral
1251:Hippocampus anatomy
1067:Thalamic fasciculus
632:corticobulbar tract
524:auditory radiations
448:corticobulbar tract
444:corticospinal tract
309:upper motor neurons
301:corticobulbar tract
253:lower motor neurons
245:corticospinal tract
207:cerebral hemisphere
1268:Hippocampus proper
942:Olfactory tubercle
379:passing from the
197:, to and from the
1352:
1351:
1348:
1347:
1235:
1234:
1168:
1167:
1160:Olfactory trigone
1092:
1091:
1072:Ansa lenticularis
1006:Centrum semiovale
992:
991:
937:Nucleus accumbens
812:BrainMaps project
790:978-0-07-160399-7
748:978-0-7020-6851-5
721:978-0-19-538826-8
484:lateral lemniscus
466:postcentral gyrus
437:lentiform nucleus
410:cerebral peduncle
366:passing from the
357:lentiform nucleus
321:cerebral peduncle
305:geniculate fibers
269:cerebral peduncle
172:
171:
167:
16:(Redirected from
1372:
1256:
1255:
1227:Stria terminalis
1180:
1179:
1103:
1102:
1049:External capsule
1013:Internal capsule
932:Ventral striatum
901:
900:
892:
891:
866:
859:
852:
843:
842:
838:
795:
794:
776:
753:
752:
732:
726:
725:
705:
699:
698:
678:
652:External capsule
359:. It contains:
285:transverse plane
271:) and below the
176:internal capsule
164:edit on Wikidata
161:
56:The motor tract.
54:
42:
33:Internal capsule
30:
29:
21:
1380:
1379:
1375:
1374:
1373:
1371:
1370:
1369:
1355:
1354:
1353:
1344:
1311:
1249:
1244:
1231:
1208:
1197:Nucleus basalis
1175:basal forebrain
1164:
1143:Olfactory tract
1129:
1088:
1054:Extreme capsule
1033:Optic radiation
988:
967:
951:Globus pallidus
923:Caudate nucleus
913:Dorsal striatum
881:
870:
825:
804:
799:
798:
791:
777:
756:
749:
733:
729:
722:
706:
702:
679:
670:
665:
657:Extreme capsule
648:
625:
605:
585:
536:
513:optic radiation
473:optic radiation
425:
397:Corticostriatal
388:caudate nucleus
353:caudate nucleus
341:
293:
281:
267:(a part of the
235:dorsal striatum
231:globus pallidus
219:caudate nucleus
199:cerebral cortex
168:
78:capsula interna
57:
45:
28:
23:
22:
15:
12:
11:
5:
1378:
1368:
1367:
1350:
1349:
1346:
1345:
1343:
1342:
1337:
1335:Perforant path
1332:
1327:
1321:
1319:
1313:
1312:
1310:
1309:
1304:
1303:
1302:
1300:Fascia dentata
1292:
1291:
1290:
1285:
1280:
1275:
1264:
1262:
1253:
1237:
1236:
1233:
1232:
1230:
1229:
1224:
1218:
1216:
1210:
1209:
1207:
1206:
1201:
1200:
1199:
1188:
1186:
1177:
1170:
1169:
1166:
1165:
1163:
1162:
1157:
1156:
1155:
1150:
1139:
1137:
1131:
1130:
1128:
1127:
1125:Olfactory bulb
1122:
1117:
1111:
1109:
1100:
1098:Rhinencephalon
1094:
1093:
1090:
1089:
1087:
1086:
1081:
1080:
1079:
1074:
1057:
1056:
1051:
1045:
1044:
1042:Corona radiata
1038:
1037:
1036:
1035:
1030:
1028:Posterior limb
1025:
1020:
1009:
1008:
1002:
1000:
994:
993:
990:
989:
987:
986:
981:
975:
973:
969:
968:
966:
965:
964:
963:
958:
947:
946:
945:
944:
939:
928:
927:
926:
925:
920:
909:
907:
898:
889:
883:
882:
869:
868:
861:
854:
846:
840:
839:
837:on 2014-01-01.
823:
814:
803:
802:External links
800:
797:
796:
789:
754:
747:
727:
720:
700:
667:
666:
664:
661:
660:
659:
654:
647:
644:
624:
621:
604:
601:
584:
581:
577:basilar artery
535:
532:
497:
496:
494:pontine nuclei
490:
480:
477:occipital lobe
471:Fibers of the
469:
433:occipital part
429:posterior limb
424:
423:Posterior limb
421:
420:
419:
416:
414:pontine nuclei
403:
394:
384:
374:
340:
337:
333:cranial nerves
292:
289:
280:
277:
261:corona radiata
170:
169:
160:
154:
153:
148:
142:
141:
136:
130:
129:
124:
118:
117:
112:
105:
104:
99:
93:
92:
87:
81:
80:
75:
69:
68:
64:
63:
59:
58:
55:
47:
46:
43:
35:
34:
26:
18:Posterior limb
9:
6:
4:
3:
2:
1377:
1366:
1363:
1362:
1360:
1341:
1338:
1336:
1333:
1331:
1328:
1326:
1323:
1322:
1320:
1318:
1314:
1308:
1305:
1301:
1298:
1297:
1296:
1295:Dentate gyrus
1293:
1289:
1286:
1284:
1281:
1279:
1276:
1274:
1271:
1270:
1269:
1266:
1265:
1263:
1261:
1257:
1254:
1252:
1247:
1242:
1238:
1228:
1225:
1223:
1220:
1219:
1217:
1215:
1211:
1205:
1202:
1198:
1195:
1194:
1193:
1190:
1189:
1187:
1185:
1181:
1178:
1176:
1171:
1161:
1158:
1154:
1151:
1149:
1146:
1145:
1144:
1141:
1140:
1138:
1136:
1132:
1126:
1123:
1121:
1118:
1116:
1113:
1112:
1110:
1108:
1104:
1101:
1099:
1095:
1085:
1082:
1078:
1075:
1073:
1070:
1069:
1068:
1065:
1063:
1059:
1058:
1055:
1052:
1050:
1047:
1046:
1043:
1040:
1039:
1034:
1031:
1029:
1026:
1024:
1021:
1019:
1018:Anterior limb
1016:
1015:
1014:
1011:
1010:
1007:
1004:
1003:
1001:
999:
995:
985:
982:
980:
977:
976:
974:
970:
962:
959:
957:
954:
953:
952:
949:
948:
943:
940:
938:
935:
934:
933:
930:
929:
924:
921:
919:
916:
915:
914:
911:
910:
908:
906:
902:
899:
897:
893:
890:
888:
887:Basal ganglia
884:
879:
875:
874:basal ganglia
867:
862:
860:
855:
853:
848:
847:
844:
836:
832:
828:
824:
822:
818:
815:
813:
809:
806:
805:
792:
786:
782:
775:
773:
771:
769:
767:
765:
763:
761:
759:
750:
744:
740:
739:
731:
723:
717:
713:
712:
704:
696:
692:
688:
684:
677:
675:
673:
668:
658:
655:
653:
650:
649:
643:
640:
635:
633:
628:
623:Focal lesions
620:
618:
614:
610:
600:
598:
594:
590:
580:
578:
574:
569:
567:
563:
558:
556:
552:
547:
545:
541:
531:
529:
525:
520:
518:
514:
510:
506:
502:
495:
491:
489:
488:temporal lobe
485:
481:
478:
474:
470:
467:
463:
460:
459:
458:
455:
453:
449:
445:
440:
438:
434:
430:
417:
415:
411:
407:
404:
402:
398:
395:
393:
389:
385:
382:
378:
375:
373:
369:
365:
362:
361:
360:
358:
354:
350:
349:crus anterius
346:
345:anterior limb
339:Anterior limb
336:
334:
330:
326:
322:
318:
314:
310:
306:
302:
298:
288:
286:
276:
274:
270:
266:
265:cerebral crus
262:
258:
254:
250:
246:
241:
238:
236:
232:
228:
224:
220:
216:
215:basal ganglia
212:
208:
205:part of each
204:
200:
196:
193:
189:
185:
181:
177:
165:
159:
155:
152:
149:
147:
143:
140:
137:
135:
131:
128:
125:
123:
119:
116:
113:
110:
106:
103:
100:
98:
94:
91:
88:
86:
82:
79:
76:
74:
70:
65:
60:
53:
48:
41:
36:
31:
19:
1317:White matter
1214:White matter
1135:White matter
1060:
1012:
998:White matter
835:the original
830:
780:
737:
730:
710:
703:
686:
636:
629:
626:
613:hypertension
606:
586:
570:
559:
548:
537:
534:Blood supply
521:
500:
498:
456:
441:
432:
428:
426:
381:frontal lobe
372:frontal lobe
348:
344:
342:
313:motor cortex
296:
294:
282:
242:
239:
203:inferomedial
180:white matter
178:is a paired
175:
173:
127:A14.1.09.524
115:birnlex_1659
77:
1260:Grey matter
1241:Archicortex
1184:Grey matter
1107:Grey matter
896:Grey matter
878:human brain
639:hemiparesis
617:infarctions
452:red nucleus
329:decussation
307:that carry
257:spinal cord
186:, carrying
67:Identifiers
821:NeuroNames
687:StatPearls
663:References
327:, undergo
192:descending
97:NeuroNames
1307:Subiculum
984:Claustrum
323:with the
311:from the
279:Structure
225:from the
188:ascending
1359:Category
979:Amygdala
905:Striatum
872:Rostral
817:hier-180
695:31194338
646:See also
583:Function
509:thalamus
401:striatum
355:and the
229:and the
223:thalamus
221:and the
109:NeuroLex
1330:Fimbria
918:Putamen
876:of the
810:at the
507:of the
486:to the
412:to the
392:putamen
390:to the
370:to the
255:in the
251:to the
227:putamen
209:of the
90:D020772
62:Details
1325:Alveus
1173:Other
787:
745:
718:
693:
446:, and
195:fibers
972:Other
211:brain
184:tract
162:[
151:61950
73:Latin
1023:Genu
785:ISBN
743:ISBN
716:ISBN
691:PMID
607:The
526:and
499:The
427:The
343:The
297:genu
295:The
291:Genu
273:pons
243:The
190:and
174:The
139:5576
122:TA98
85:MeSH
1288:CA4
1283:CA3
1278:CA2
1273:CA1
961:GPi
956:GPe
819:at
315:to
146:FMA
134:TA2
102:198
1361::
829:.
757:^
689:.
685:.
671:^
634:.
599:.
591:;
568:.
557:.
546:.
530:.
439:.
111:ID
1248:/
1243::
1064::
865:e
858:t
851:v
793:.
751:.
724:.
697:.
479:;
166:]
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
