Summary Triceps Brachii Origin Long head: infraglenoid tubercle of scapula; Lateral head: posterior surface of humerus, superior to radial groove; Medial head: posterior surface of humerus, inferior to radial groove Insertion Proximal end of olecranon process of ulna and fascia of forearm Action Chief extensor of forearm; long head steadies head of abducted humerus Innervation Radial nerve (C6, C7, C8) Arterial supply Branches of deep brachial artery
All Videos (0) Podcasts (1) Anatomy⎪ Triceps Brachii Anatomy - Triceps Brachii Listen Now 3:23 min 1/13/2021 78 plays 0.0 (0)