Flexor carpi ulnaris Pectoralis major (sternal head is cut) Acromion process Coracoid process of scapula Clavicle Humerus Deltoid Brachialis Extensor digitorum Median nerve Palmaris longus Brachioradialis Extensor carpi ulnaris Radial nerve Brachial plexus Radial artery Ulnar nerve Biceps Brachii Flexor carpi radialis Tendons of the flexor digitorum Pronator teres Tendon of triceps brachii Long head of triceps brachii Long head of triceps brachii Latissimus dorsi (cut) Teres major Supraspinatus Subscapularis deltoid Brachialis Flexor digitorum Median nerve Palmaris longus Flexor digitorum superficialis Flexor carpi ulnaris Median nerve Vetebral border of scapula Brachial artery Ulnar nerve Teres minor Flexor carpi ulnaris Pronator teres Pectoralis major (sternal head is cut) Palmaris longus Acromion process Clavicle Humerus Deltoid Brachialis Extensor digitorum Spine of scapula Palmaris longus Brachioradialis Extensor carpi ulnaris Radial nerve Brachial plexus Radial artery Ulnar nerve Biceps Brachii Subclavian artery