superior ulnar collateral artery superior ulnar collateral artery the superior ulnar collateral artery (inferior profunda artery), of small size, arises from the brachial artery a little below the middle of the arm; it frequently springs from the upper part of the a. profunda brachii. superior ulnar collateral arterydiagram of the anastomosis around the elbow joint. (sup. ulnar collateral labeled at upper right.)detailssourcebrachial artery, inferior ulnar collateral arterybranchesposterior ulnar recurrent arteryidentifierslatinarteria collateralis ulnaris superiorta98a12.2.09.025ta24639fma22706anatomical terminology it pierces the medial intermuscular septum, and descends on the surface of the medial head of the triceps brachii to the space between the medial epicondyle and olecranon, accompanied by the ulnar nerve, and ends under the flexor carpi ulnaris by anastomosing with the posterior ulnar recurrent, and inferior ulnar collateral. it sometimes sends a branch in front of the medial epicondyle, to anastomose with the anterior ulnar recurrent. additional images cross-section through the middle of upper arm. the brachial artery.