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Inferior Ulnar Collateral Artery
Cardiovascular System

Inferior Ulnar Collateral Artery

Arteria collateralis ulnaris inferior

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Quick Facts

Origin: Brachial artery.

Course: Distally from the anterior to the posterior aspect of the humerus.

Branches: Unnamed branches.

Supplied Structures: Elbow joint.

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The inferior ulnar collateral artery arises from the brachial artery approximately 5 cm above the elbow joint (Standring, 2016).


It courses inferiorly along the brachialis, then becomes deep to the brachialis. It curves around the distal humerus and divides into an anterior and a posterior branch.


The inferior ulnar collateral artery gives an anterior and a posterior branch which anastomose with the anterior ulnar recurrent artery respectively (Standring 2016).

Supplied Structures

It contributes to anastomotic network that supplies the elbow joint.


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

Learn more about this topic from other Elsevier products

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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