Superior Ulnar Collateral Artery

Origin

The superior ulnar collateral artery emerges via the brachial artery at a level simply distal to the midportion of the arm. It also might emerge via the proximal section of the profunda brachii in approximately 22%.

Superior Ulnar Collateral Artery

Structure

It is a long, slim vessel that pierces the medial intermuscular septum to reach the posterior area of the arm. The artery signs up with the ulnar nerve and also both structures proceed distally along the medial head of the triceps brachii.

Insertion

• The artery and nerve route posteriorly at the back of the medial epicondyle in the gap in between the epicondyle and the olecranon. The vessel proceeds deep to the flexor carpi ulnaris.
• Conventional books typically reveal or talk about an anastomosis of the superior ulnar collateral artery with the posterior ulnar recurrent artery; nevertheless, current research studies showed no recognizable direct anastomosis in between these arteries.
• There typically is an even more proximal anastomosis together with the inferior ulnar collateral artery’ simply proximal to the medial epicondyle.
• The superior ulnar collateral artery also might anastomose with the anterior ulnar recurrent artery as well as might supply a section to the medial epicondyle.

Supply

The superior ulnar collateral artery (in addition to the inferior ulnar collateral as well as the posterior ulnar recurrent arteries) supplies a segmental extrancural along with intrancural vascular deliver to the ulnar nerve.