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Anterior interosseous artery - Wikipedia, the free encyclopedia

Anterior interosseous artery

From Wikipedia, the free encyclopedia

Artery: Anterior interosseous artery
Ulnar and radial arteries. Deep view. (Volar interosseous labeled vertically at center.)
Latin arteria interossea anterior, arteria interossea volaris
Gray's subject #152 596
Supplies forearm
radius and ulna
Source common interosseous artery   
Branches muscular branches, nutrient arteries of radius and ulna,
branch to volar carpal network
Dorlands
/ Elsevier
    
a_61/12154698

The anterior interosseous artery (volar interosseous artery) is an artery of the arm.

[edit] Course

It passes down the forearm on the volar surface of the interosseous membrane.

It is accompanied by the volar interosseous branch of the median nerve, and overlapped by the contiguous margins of the flexor digitorum profundus and flexor pollicis longus, giving off in this situation muscular branches, and the nutrient arteries of the radius and ulna.

At the upper border of the Pronator quadratus it pierces the interosseous membrane and reaches the back of the forearm, where it anastomoses with the dorsal interosseous artery.

It then descends, in company with the terminal portion of the dorsal interosseous nerve, to the back of the wrist to join the dorsal carpal net-work.

The volar interosseous artery gives off a slender branch, the arteria mediana, which accompanies the median nerve, and gives offsets to its substance; this artery is sometimes much enlarged, and runs with the nerve into the palm of the hand.

Before it pierces the interosseous membrane the anterior interosseous sends a branch downward behind the pronator quadratus to join the volar carpal network.

[edit] Additional images

[edit] External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

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