ANATOMICAL VARIATIONS OF THE UPPER LIMB ARTERIES

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Material and Methods. Within the training preparation of a male corpse, fixed with a 10% formalin solution, we found the following anomalies in the structure of the arteries of the left upper limb. Results and Discussion. The ulnar artery had an abnormally high origin. It branch off in the medial direction from the distal axillary artery in the projection of trigonum subpectorale below the site of the subscapular artery. Then it descended along the front surface of the shoulder in a medial biceps groove, accompanied by elements of the main neurovascular bundle. In the lower third of the arm, the artery deviated medially and, along with the ulnar nerve, lay on the posterior surface of the medial epicondyle. On the forearm, the ulnar artery was located in the eponymous furrow between the superficial flexor of the fingers of the hand and the ulnar flexor of the wrist, then continued on the palmar surface of the hand between the short arm muscle and the flexor retainer. Departures of the anterior and posterior recurrent elbow branches from the ulnar artery were not observed. The common interosseous artery in the case studied originated from the radial artery by a short trunk less than 1 cm and was divided into the anterior, posterior interosseous arteries and a branch directed toward the anterior surface of the elbow joint. From the posterior interosseous artery, in addition to the reciprocal interosseous artery, an additional vessel moved to the back surface of the elbow joint. The upper and lower collateral ulnar arteries started from the brachial artery with a single trunk, which was then divided into two branches. Aim. The case of a variant arrangement of arteries described by us should be taken into account in operative interventions on the upper limb.