Inferior ulnar collateral artery

Artery: Inferior ulnar collateral artery
Diagram of the anastomosis around the elbow-joint. (Inf. ulnar collateral labeled at center right.)
Arteries of the back of the forearm and hand. (Inferior ulnar collateral labeled at upper left.)
Latin arteria collateralis ulnaris inferior
Gray's subject #150 592
Source Brachial artery   

The inferior ulnar collateral artery (anastomotica magna artery) arises about 5 cm. above the elbow.

Contents

Course

It passes medialward upon the Brachialis, and piercing the medial intermuscular septum, winds around the back of the humerus between the Triceps brachii and the bone, forming, by its junction with the profunda brachii, an arch above the olecranon fossa.

Branches and anastomoses

As the vessel lies on the Brachialis, it gives off branches which ascend to join the superior ulnar collateral: others descend in front of the medial epicondyle, to anastomose with the anterior ulnar recurrent.

Behind the medial epicondyle a branch anastomoses with the superior ulnar collateral and posterior ulnar recurrent arteries.

Additional images

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.