Ulnar artery

The ulnar artery descends from the division of the brachialis artery under the caput commune ulnare between the flexor carpi ulnaris muscle and the flexor digitorum superficialis muscle.

It gives off the a. interossea communis, which subsequently divides into the a. interossea anterior, posterior and a. commitans nervi mediani (during the development of the main artery of the limb). It also sends branches for the rete carpi palmare and dorsale, passes through the canalis ulnaris (Guyon's canal)  , issues the r. palmaris profundus to the arcus palmaris profundus and forms the arcus palmaris superficialis.

It supplies the muscles of the anterior and dorsal groups, the supinator muscle, the palm, the back of the hand and fingers, the skin in the medial half of the forearm.

Reference

 * CIHÁK, Radomír. Anatomy 3.  2nd ed. Prague: Grada Publishing, 2004. 692 pp.  ISBN 978-80-247-1132-4.
 * ↑ HOLEK, Martin. Anatomy of the limbs for the winter autopsy [electronic resource]: (non-saleable script for first-year students of the 3rd LF UK). 1st edition. Prague: Charles University, 3rd Faculty of Medicine, 2009.  ISBN 978-80-254-3223-5.