Inferior ulnar collateral artery
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Artery: Inferior ulnar collateral artery | |
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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 |
Dorlands/Elsevier | a_61/12153984 |
The inferior ulnar collateral artery (anastomotica magna artery) arises about 5 cm. above the elbow.
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.
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.
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.