"The ulnar collateral ligament connects the ulnar styloid process with the triquetrum in a longitudinal orientation deep to the extensor carpi ulnaris tendon and superficial to the ulnomeniscal homologue forming the most ulnar part of the joint capsule 1-2. It is a component of the triangular fibrocartilage complex. It blends with the extensor carpi ulnaris tendon sheath."