Inferior ulnar collateral artery

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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
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 As such, some of the information contained herein may be outdated.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.

Arteries of upper limbsedit

AXILLARY: superior thoracic - thoracoacromial - lateral thoracic - subscapular (circumflex scapular - thoracodorsal) - anterior humeral circumflex - posterior humeral circumflex | (Gray's s149)

BRACHIAL: profunda brachii (radial collateral, medial collateral) - superior ulnar collateral - inferior ulnar collateral | (Gray's s150)

RADIAL: deep palmar arch - radial recurrent - superficial palmar arch - dorsal carpal - dorsal carpal network - dorsal metacarpal - princeps pollicis - radial of index finger - volar metacarpal | (Gray's s151)

ULNAR: anterior ulnar recurrent - posterior ulnar recurrent - common interosseous - volar interosseous - posterior interosseous - interosseous recurrent - common volar digital | (Gray's s152)