PHTY207 Lecture Notes - Lecture 13: Ulnar Collateral Ligament Of Elbow Joint, Medial Collateral Ligament, Annular Ligament Of Radius
Document Summary
Limited ball and socket hinge joint: humero-ulnar joint, hinge joint between trochlear notch ulna and trochlea of humerus, not in ant-post plane and so carrying angle in extension /supination formed. Semi lunar notch ulna prevents lateral movement in the joint. Superior radio-ulnar joint: hor held strongly in radial notch by annular ligament, covers 80% of radial head, thicker posteriorly > anteriorly, together allow supination and pronation, all surrounded by loose capsule. Ligaments of the elbow: ulnar collateral ligament, anterior oblique band anterior medial epicondyle to coronoid process ulnar nerve crosses this section. From lateral and medial cords of the brachial plexus it enters the arm from axilla at the inferior margin of the teres major muscle. It passes vertically down and courses with brachial artery on medial side of arm between biceps and brachialis: radial. From posterior cord brachial plexus c 5,6,7, 8 and t1.
