ABSTRACT
Variations in course of the arteries are well documented. Knowledge of the variation of the arterial system is important during vascular and reconstructive surgeries, in the evaluation of angiographic images. During routine anatomical dissection of upper limb ,of adult male cadaver of 55 years in Department of anatomy, SNMC, Agra, we came across a variant origin of the ulnar artery, instead of terminal division of brachial artery it arose from the brachial artery at its lower 1/3 part ,also it followed a superficial course. Brachial artery in the cubital fossa divided into radial artery and common interosseous artery, also the anterior and posterior ulnar recurrent branches arose from the common interosseous branch instead of ulnar artery. Knowledge of this variation is important for anatomist, embryologist, radiologists keep pace with new emerging variations, also for orthopaedicians, surgeons for planning appropriately operative procedures involving this region.
ABSTRACT
After arising from the brachial artery in the cubital fossa the ulnar artery usually passes deep into the superficial flexor muscles of the forearm. In the lower two-thirds, it typically follows a sub-fascial course. In the present case, during a routine undergraduate course dissection of a cadaver, it was found that the ulnar artery arose normally as a terminal branch of the brachial artery in the cubital fossa, followed a sub-fascial course by lying superficial to the flexor muscles then completed the superficial palmar arch in hand. This artery gave only minute muscular branches in the forearm. Moreover, the main branches that usually arise from the ulnar artery were given off by the radial artery. This type of variation is of importance for both the clinicians and surgeons due to its vulnerability to injuries and of academic interest for anatomists.
ABSTRACT
A variant course and branching pattern of the right brachial artery was recorded in a 54-year-old male cadaver during the practical sessions of University College of Medical Sciences, Delhi, India. The right brachial artery divided in the middle third of arm into a medial superficial and lateral deep branch. The superficial medial branch descended anterior to the median nerve and ended by dividing in the cubital fossa into ulnar and radial arteries, whereas the lateral branch descended postero-medial to the median nerve, ending deep to pronator teres as the common interosseous artery. The left brachial artery showed a normal branching pattern by dividing into radial and ulnar arteries in the cubital fossa. The probable origin of such a variation is embryological and familiarity with such variations is imperative as they might affect dynamics of limb function or alter the course of interventional procedures.