Dorsal metacarpal arteries

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Artery: Dorsal metacarpal arteries
Arteries of the back of the forearm and hand. (Dorsal metacarpal visible at bottom center.)
Latin arteriae metacarpales dorsales
Gray's p.594
Source dorsal carpal arch
Branches dorsal digital arteries
Vein dorsal metacarpal veins

Most of the dorsal metacarpal arteries arise from the dorsal carpal arch and run downward on the second, third, and fourth dorsal interossei of the hand and bifurcate into the dorsal digital arteries. Near their origin, they anastomose with the deep palmar arch by perforating arteries. They also anastomose with common palmar digital arteries (from the superficial palmar arch), also via perforating arteries.

The first dorsal metacarpal artery arises directly from the radial artery before it crosses through the two heads of the first dorsal interosseous muscle.

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This article incorporates text from a public domain edition of Gray's Anatomy.