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311:. Injuries (such as by an external flexion force during active extension) may allow the tendon to dislocate into the intermetacarpal space; the extensor tendon then acts as a flexor and the finger may no longer be actively extended. This may be corrected surgically by using a slip of the extensor tendon to replace the damaged ligamentous band.
41:
290:
Opposite the first interphalangeal joint this aponeurosis divides into three slips; an intermediate and two collateral: the former is inserted into the base of the second phalanx; and the two collateral, which are continued onward along the sides of the second phalanx, unite by their contiguous
299:
side. On the back of the hand, the tendons to the middle, ring, and little fingers are connected by two obliquely placed bands, one from the third tendon passing inferior and laterally to the second tendon, and the other passing from the same tendon inferior and medially to the fourth.
1592:
665:
Green, Jennifer B.; Deveikas, Charles; Ranger, Helen E.; Draghetti, Joanne G.; Groat, Lindsay C.; Schumer, Evan D.; Leslie, Bruce M. (2016-01-01), Magee, David J.; Zachazewski, James E.; Quillen, William S.; Manske, Robert C. (eds.),
291:
margins, and are inserted into the dorsal surface of the last phalanx. As the tendons cross the interphalangeal joints, they furnish them with dorsal ligaments. The tendon to the index finger is accompanied by the tendon of
239:
of the posterior forearm present in humans and other animals. It extends the medial four digits of the hand. Extensor digitorum is innervated by the posterior interosseous nerve, which is a branch of the radial nerve.
275:
to the collateral ligaments and serves as the dorsal ligament of this joint; after having crossed the joint, it spreads out into a broad aponeurosis, which covers the dorsal surface of the first
248:
The extensor digitorum muscle arises from the lateral epicondyle of the humerus, by the common tendon; from the intermuscular septa between it and the adjacent muscles, and from the
839:
203:
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319:
The extensor digitorum muscle extends the phalanges, then the wrist, and finally the elbow. It tends to separate the fingers as it extends them.
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751:"Boxer Knuckle (Injury of the Extensor Hood with Extensor Tendon Subluxation): Diagnosis with Dynamic US—Report of Three Cases"
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307:; they serve to maintain the central alignment of the extensor tendons over the metacarpal head, thus increasing the available
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260:, within a mucous sheath. The tendons then diverge on the back of the hand, and are inserted into the middle and distal
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In the fingers, the extensor digitorum acts principally on the proximal phalanges, acting to extend the
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33:
Posterior surface of the forearm. Superficial muscles. Extensor digitorum muscle is labeled in purple.
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Transverse section across the wrist and digits. (Ext. dig. communis labeled at bottom center.)
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1079:
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28:
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Knowledge (XXG) articles incorporating text from the 20th edition of Gray's
Anatomy (1918)
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The extensor tendons are connected to the second by a thin transverse band, known as the
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Pathology and
Intervention in Musculoskeletal Rehabilitation (Second Edition)
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252:. It divides below into four tendons, which pass, together with that of the
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Lopez-Ben, Robert; Lee, Donald H.; Nicolodi, Daniel J. (September 2003).
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641:. Lippincott Williams & Wilkins. pp. INSERT PAGE NUMBER.
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and is reinforced, in this situation, by the tendons of the
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The mucous sheaths of the tendons on the back of the wrist.
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Transverse section across distal ends of radius and ulna.
800:"Clinical Example: Sagittal band rupture reconstruction"
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386:Cross-section through the middle of the forearm.
668:"Chapter 10 - Hand, Wrist, and Digit Injuries"
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16:Forearm muscle which extends the four fingers
8:
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330:, however, is mediated predominantly by the
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374:Tendons of forefinger and vincula tendina.
328:proximal and distal interphalangeal joints
39:
27:
639:Essential Clinical Anatomy, Third Edition
362:Bones of left forearm. Posterior aspect.
264:of the fingers in the following manner.
256:, through a separate compartment of the
1567:
629:
352:
610:This article incorporates text in the
214:
18:
587:Flexor digitorum superficialis muscle
271:articulation each tendon is bound by
147:Flexor digitorum superficialis muscle
7:
660:
658:
674:, W.B. Saunders, pp. 344–435,
422:Extensor digitorum communis muscle
14:
581:Flexor digitorum profundus muscle
151:flexor digitorum profundus muscle
1570:
637:Moore, Keith; Anne Agur (2007).
604:
575:Extensor digitorum longus muscle
569:Extensor digitorum brevis muscle
554:Muscles of hand. Posterior view.
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542:Muscles of hand. Posterior view.
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1228:extensor carpi radialis longus
1155:flexor digitorum superficialis
85:of the 2nd, 3rd, 4th, and 5th
1:
595:(Braunecker-Effenberg reflex)
99:Posterior interosseous artery
111:Posterior interosseous nerve
1438:flexor digiti minimi brevis
702:"Extensor digitorum longus"
618:of the 20th edition of
233:extensor digitorum communis
168:musculus extensor digitorum
1614:
1180:flexor digitorum profundus
434:Extensor digitorum muscles
211:Anatomical terms of muscle
1598:Muscles of the upper limb
868:
767:10.1148/radiol.2283020833
593:Extensor digitorum reflex
530:Extensor digitorum muscle
518:Extensor digitorum muscle
506:Extensor digitorum muscle
494:Extensor digitorum muscle
482:Extensor digitorum muscle
470:Extensor digitorum muscle
458:Extensor digitorum muscle
446:Extensor digitorum muscle
324:metacarpophalangeal joint
254:extensor indicis proprius
209:
38:
26:
22:Extensor digitorum muscle
1405:abductor pollicis brevis
1289:extensor pollicis longus
1284:extensor pollicis brevis
1279:abductor pollicis longus
1443:abductor digiti minimi
1433:opponens digiti minimi
1400:flexor pollicis brevis
1249:extensor carpi ulnaris
1244:extensor digiti minimi
1185:flexor pollicis longus
340:lumbricals of the hand
258:dorsal carpal ligament
231:muscle (also known as
66:common extensor tendon
1318:bicipital aponeurosis
1145:flexor carpi radialis
81:of middle and distal
1512:extensor retinaculum
1150:flexor carpi ulnaris
295:, which lies on its
1340:antebrachial fascia
1274:anatomical snuffbox
1085:triangular interval
1042:intermuscular septa
934:infraspinous fascia
929:supraspinous fascia
739:(1918), see infobox
706:www.anatomynext.com
326:. Extension of the
269:metacarpophalangeal
250:antebrachial fascia
1542:palmar aponeurosis
1537:flexor retinaculum
1517:extensor expansion
1361:osborne's ligament
1239:extensor digitorum
1175:pronator quadratus
1075:quadrangular space
1009:articularis cubiti
305:juncturae tendinum
229:extensor digitorum
79:Extensor expansion
62:Lateral epicondyle
1558:
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1412:adductor pollicis
1395:opponens pollicis
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681:978-0-323-31072-7
648:978-0-7817-6274-8
346:Additional images
336:palmar interossei
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1080:triangular space
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777:. Archived from
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708:. Archived from
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293:extensor indicis
217:edit on Wikidata
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761:(3): 642–646.
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1208:
1165:
1126:superficial:
1125:
1106:compartments
1069:
1041:
953:compartments
878:rotator cuff
804:. Retrieved
802:. Eaton Hand
794:
783:. Retrieved
779:the original
758:
754:
744:
734:
714:. Retrieved
710:the original
705:
695:
685:, retrieved
671:
638:
632:
623:
609:
603:
321:
318:
302:
289:
266:
247:
232:
228:
226:
180:A04.6.02.042
167:
905:teres major
893:teres minor
285:lumbricalis
157:Identifiers
1587:Categories
1503:posterior:
1471:interossei
1428:hypothenar
1218:mobile wad
981:brachialis
785:2012-04-02
716:2018-03-01
687:2021-01-08
600:References
281:interossei
142:Antagonist
1528:anterior:
1466:lumbrical
1269:supinator
1199:posterior
991:posterior
755:Radiology
273:fasciculi
262:phalanges
244:Structure
123:Extension
83:phalanges
74:Insertion
1328:extensor
1116:anterior
1004:anconeus
963:anterior
861:Shoulder
775:12869687
616:page 451
563:See also
315:Function
309:leverage
1577:Anatomy
1101:Forearm
1047:lateral
873:deltoid
851:of the
849:Muscles
806:25 June
277:phalanx
235:) is a
135:fingers
118:Actions
87:fingers
51:Details
1563:Portal
1493:fascia
1481:palmar
1476:dorsal
1390:thenar
1333:flexor
1310:fascia
1232:brevis
1070:spaces
1052:medial
1019:fascia
976:biceps
915:fascia
773:
678:
645:
624:(1918)
589:(hand)
583:(hand)
332:dorsal
237:muscle
94:Artery
57:Origin
1349:other
1260:deep:
1166:deep:
1063:other
614:from
577:(leg)
571:(leg)
297:ulnar
215:[
204:38500
163:Latin
131:wrist
106:Nerve
1375:Hand
1230:and
808:2011
771:PMID
676:ISBN
643:ISBN
338:and
334:and
283:and
227:The
192:2500
175:TA98
133:and
127:hand
948:Arm
853:arm
763:doi
759:228
199:FMA
187:TA2
125:of
1589::
769:.
757:.
753:.
725:^
704:.
670:,
657:^
342:.
287:.
149:,
129:,
1565::
1108:)
1104:(
955:)
951:(
917::
841:e
834:t
827:v
810:.
788:.
765::
719:.
651:.
219:]
68:)
64:(
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