Dorsal carpal branch of ulnar artery
Ramus carpeus dorsalis arteriae ulnaris
- Latin synonym: Ramus carpalis dorsalis arteriae ulnaris
- Related terms: Dorsal carpal branch
Definition
The dorsal carpal branch (ramus carpeus dorsalis; posterior ulnar carpal artery) arises immediately above the pisiform bone, and winds backward beneath the tendon of the Flexor carpi ulnaris; it passes across the dorsal surface of the carpus beneath the Extensor tendons, to anastomose with a corresponding branch of the radial artery.
Immediately after its origin, it gives off a small branch, which runs along the ulnar side of the fifth metacarpal bone, and supplies the ulnar side of the dorsal surface of the little finger.
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