Anterior interosseous artery
- Anterior interosseous artery
Infobox Artery
Name = PAGENAME
Latin = arteria interossea anterior, arteria interossea volaris
GraySubject = 152
GrayPage = 596
Caption = Ulnar and radial arteries. Deep view. (Volar interosseous labeled vertically at center.)
Caption2 =
BranchFrom = common interosseous artery
BranchTo = muscular branches, nutrient arteries of radius and ulna,
branch to volar carpal network
Vein =
Supplies = forearm
radius and ulna
MeshName =
MeshNumber =
DorlandsPre = a_61
DorlandsSuf = 12154698
The anterior interosseous artery (volar interosseous artery) is an artery of the arm.
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.
=Additional
External links
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* - "Dorsum of the hand, deep dissection, posterior view"
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