Origins of ST, GH, Elbow, and Forearm Muscles

Occipital protuberance

Ligamentum nuchae

Spinous process of C7-T12

Upper, Middle, and Lower Trapezius

Transverse processes of first through fourth cervical vertebrae

Levator Scapulae

Spinous processes of T-2 to T-5

Rhomboid Major

Spinous processes of C-7 and T-1

Rhomboid Minor

External surfaces of upper eight or nine ribs

Serratus Anterior

Inferior angle of the scapula, T6-T12 spinous processes

Latissimus dorsi

Third, fourth, and fifth ribs

Pectoralis Minor

Medial half of clavicle, sternum, and cartilage of first through sixth ribs

Pectoralis Major

Infraspinous fossa of the scapula

Infraspinatus

Upper two-thirds of lateral border of the scapula

Teres minor

Subscapular fossa of the scapula

Subscapularis

Supraspinous fossa of the scapula

Supraspinatus

Lateral one-third of clavicle, acromion, and spine of scapula

Anterior, Middle, and Posterior deltoid

Inferior angle and lower one-third of lateral border of the scapula

Teres major

Coracoid process of scapula

Biceps Brachii (Short head)

Supraglenoid tubercle of scapula

Biceps Brachii (long head)

Coracoid process of the scapula

Coracobrachialis

Infraglenoid tubercle of the scapula

Triceps brachii (long head)

Posterior surface of proximal half of the humerus

Triceps Brachii (lateral head)

Posterior surface of distal half of humerus

Triceps Brachii (Medial head)

Distal half of anterior surface of humerus

Brachialis

The lateral supracondylar ridge of humerus

Brachioradialis

Lateral epicondyle of the humerus

Anconeus

Lateral epicondyle of humerus, radial collateral ligament, annular ligament, and supinator crest of the ulna

Supinator

Medial epicondyle of humerus

Pronator teres (humeral head)

Coronoid process of the ulna

Pronator teres (ulnar head)

Medial, anterior surface of distal ulna

Pronator Quadratus