Tags: Anatomical Structure, Artery.

The posterior interosseous artery (dorsal interosseous artery) is an artery of the forearm. It passes backward between the oblique cord and the upper border of the interosseous membrane. It appears between the contiguous borders of the supinator and the abductor pollicis longus and runs down the back of the forearm between the superficial and deep layers of muscles to both of which it distributes branches.

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