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Palmar Carpal Branch of Radial Artery (Right)
Cardiovascular System

Palmar Carpal Branch of Radial Artery (Right)

Ramus carpeus palmaris arteriae radialis

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Quick Facts

Origin: Radial artery.

Course: Medially to anastomose with the palmar carpal branch of ulnar artery.

Branches: Forms palmar carpal arch.

Supplied Structures: Wrist joint.

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The palmar carpal branch arises from the radial artery.


The palmar carpal branch of the radial artery arises near the inferior edge of the pronator quadratus muscle. It passes in an inferomedial direction along the anterior aspect of the distal radius, deep to the flexor carpi radialis and the flexor pollicis longus muscles. It anastomoses with the corresponding branch from the ulnar artery, deep to the long flexor tendons.


There are no named branches, but it contributes to the formation of the palmar carpal arch.

Supplied Structures

The palmar carpal arch supplies the anterior aspect of the wrist joint.

Learn more about this topic from other Elsevier products

Radial Artery

ScienceDirect image

The radial artery and its two venae comitantes are invested in a layer of deep fascia known as the lateral intermuscular septum, which separates the flexor and extensor compartments of the forearm and is attached to the periosteum of the radius distal to the insertion of the pronator teres.

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