Bassett Collection of Stereoscopic Images of Human Anatomy

Collection Home

Dorsal aspect of hand

Dorsal interosseous muscles

Image #109-5

KEYWORDS: Hand and fingers, Vasculature.

Creative Commons

Stanford holds the copyright to the David L. Bassett anatomical images and has assigned Creative Commons license Attribution-Share Alike 4.0 International to all of the images.

For additional information regarding use and permissions, please contact Dr. Drew Bourn at dbourn@stanford.edu.

Dorsal aspect of hand

Dorsal interosseous muscles

The extensor tendons have been cut away and the dorsal interosseous fascia has been removed. A small part of the third dorsal interosseous muscle passes obliquely across the intermetacarpal space to insert on the shaft of the third metacarpal. The first dorsal interosseous muscle has a similar arrangement.

1 .	Dorsal carpal branch radial artery
2 .	Extensor carpi radialis longus muscle (tendon of insertion)
3 .	Extensor pollicis longus muscle (tendon of insertion)
4 .	Extensor carpi radialis brevis muscle (tendon of insertion)
5 .	Branches of dorsal metacarpal artery I
6 .	Dorsal metacarpal artery II
7 .	Dorsal interosseous muscle I
8 .	Metacarpal II
9 .	Dorsal interosseous muscle II
10 .	Common extensor digitorum muscle (tendon to index finger)
11 .	Extensor indicis muscle (tendon of insertion)
12 .	Transverse fibers of extensor expansion
13 .	Common extensor digitorum muscle (tendons of insertion)
14 .	Dorsal metacarpal artery III
15 .	Dorsal interosseous muscle III (left pointer on muscle described in text above)
16 .	Dorsal interosseous muscle IV
17 .	Metacarpal V
18 .	Abductor digiti minimi muscle
19 .	Position of carpometacarpal articulation
20 .	Left pointer: Dorsal carpal ligament Right pointer: Compartment for common extensor digitorum muscle and extensor indicis muscle
21 .	Extensor carpi ulnaris muscle (tendon cut off within compartment)
22 .	Compartment for extensor digiti minimi muscle