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Dorsal Carpal Branch of Ulnar Artery
Cardiovascular System

Dorsal Carpal Branch of Ulnar Artery

Ramus carpeus dorsalis arteriae ulnaris

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The dorsal carpal branch originates from the ulnar artery, just proximal to the pisiform.


The dorsal carpal branch of the ulnar artery courses posteriorly, deep to the distal tendon of the flexor carpi ulnaris muscle. Once posterior, it continues laterally deep to the extensor tendons. It anastomoses with its counterpart from the radial artery to form the dorsal carpal arch.


The ulnar branch gives a small branch, near the pisiform, to the medial aspect of the fifth metacarpal as well as forming the dorsal carpal arch (Standring, 2016).

Supplied Structures

The dorsal carpal branch of the ulnar artery supplies the medial aspect of the dorsal surface of the fifth digit and contributes to the supply of the dorsal aspect of the wrist.


Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edn.: Elsevier Limited.

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Ulnar Artery

ScienceDirect image

The ulnar artery also commences from 1 cm below the center of the antecubital fossa to a point on the second line that is at the junction between the proximal and middle thirds.

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