A case report on variant ulnar artery
International Journal of Medical Science and Public Health
During the routine dissection of the axillary region and the arm for undergraduate student on a 75 years old donated embalmed cadaver in the department of Anatomy of K.J.Somaiya Medical College, Sion, Mumbai,India, an unusual branch of the brachial artery was found. The brachial artery terminated in the cubital fossa into radial and ulnar or interosseous arteries. The radial artery had normal course and branches. The other artery was deeper and gave the common interosseous artery, anterior and
... tery, anterior and posterior ulnar recurrent arteries, and muscular branches to brachioradialis and flexor pollicis longus and ended in the median nerve in the distal part of the forearm. The unusual large branch from the brachial artery was a variant of ulnar artery, arose from the lateral side of the brachial artery, descended on the lateral side upto the cubital fossa and crossed the fossa from lateral to medial, superficial to median nerve. It then descended superficial to the muscles arising from medial epicondyle of the humerus and was covered by the deep fascia of the forearm, pierced the deep fascia proximal to the wrist, crossed the flexor retinaculum, and formed the superficial palmar arch. Throughout its course, this artery gave no branch. The embryological basis of the variation is presented.