Résumé
Owing to the diverse applications of the ulnar artery in reconstructive surgery and the use of the radial artery in coronary bypass grafts, the study of the perforators and anastomotic branches of these arteries is becoming nowadays an issue of great importance. Is to study the ulnar artery in the lower forearm and hand. Ten upper limbs were injected with red latex and dissected to identify the perforators and anastomotic branches of the ulnar artery. It was found that the dorsal branch of the ulnar artery gave three branches: ascending and medial giving several perforators to the skin of the medial side of the forearm and a descending branch joining the dorsal carpal branch of the radial artery and the termination of the anterior interosseous artery to form the dorsal carpal arch. Palmar carpal arches were found in 50% of specimens; they were formed by the palmar carpal branches of the ulnar and radial arteries, the recurrent branch of the deep palmar arch and a branch from the anterior interosseous artery. Four types of the superficial palmar arch were found while deep palmar arch was found in all specimens and was classified into three types. There were always a significant anastomosis between the ulnar and radial arteries in the hand and this is essential for flap reconstruction and bypass grafts