Corpus: Anterior interosseous artery

The anterior interosseous artery is a branch from the common interosseous artery. It is accompanied by the anterior interosseous vein.

The anterior interosseous artery runs - accompanied by the anterior interosseous nerve - on the volar side of the antebrachial interosseous membrane in the volar interosseous duct. It is overlapped by the edges of the flexor digitorum profundus muscle and the flexor pollicis longus muscle. In its course, it gives off smaller branches to the surrounding muscles and other supply vessels for the radius and ulna.

At the upper edge of the pronator quadratus muscle, it pierces the antebrachial interosseous membrane and thus reaches the dorsal side of the forearm, where it forms an anastomosis with the posterior interosseous artery. Together with the posterior interosseous artery, the artery opens into the dorsal carpal rete.