male human triceps muscle anatomy. 3d render

skelribs skeleton illustrationqua illustrationquad quaanatomy muscle quadriceps femoris large composed distinct heads rectus superficial muscles middle originates male human anatomy triceps render brachii commonly upper arm responsible extending elbow joint straightening involved push-ups bench press dips three long head largest longest infraglenoid tubercle scapula olecranon process ulna lateral outside posterior surface humerus radial