Upper Extremity Proximal Attachments

Subscapularis

medial 2/3 of anterior (Volar) surface of scapula

Teres minor

Dorsal surface of middle half of lateral border of scapula

Teres Major

dorsal (posterior) surface of the inferior angle of the scapula and the lower third of the lateral border of the scapula

Infraspinatus

infraspinous fossa of

scapula

Supraspinatus

supraspinous fossa of scapula

Clavicular head of pectoralis major

Anterior surface of medial ½ clavicle

Sternocostal head of pectoralis major

Manubrium/body of sternum and cartilage of 1st 6 ribs

Pectoralis Minor

anterior surface of 3rd – 5th ribs

Latissimus Dorsi

Lower 6 thoracic vertebrae, all lumbar/sacral vertebrae, posterior

1/3 of iliac crest, Ribs 9-12

Rhomboids minor

Proximal: lower ligamentum nuchae and the spinous processes of seventh cervical and first thoracic vertebrae

Rhomboids Major

pinous processes of 2nd-5th thoracic vertebrae

Trapezius

Medial 1/3 of Superior nuchal line of occipital bone, External occipital protuberance, ligamentum nuchae, spines of c 7 and T1-T12, associated supraspinous ligaments

Anterior Deltoid

Anterior border of lateral 1/3 of clavicle

Middle deltoid

Lateral border of acriomion process

Posterior Deltoid

Inferior edge of scapular spine

Medial and Lateral heads triceps brachii

proximal humerus

Long head triceps brachii

nfraglenoid tubercle of scapula

Long head biceps brachii

upraglenoid tubercle, superior glenoid labrum

Short head biceps brachii

ateral aspect of apex of coracoid process

Serratus Anterior

lateral aspect of 1st 8 ribs

Coracobrachialis

coracoid process of the scapula

Brachialis

lower half of anterior aspect of humerus

Brachioradialis

upper lateral supracondylar ridge of humerus

Extensor Mass

Lateral elbow

Flexor mass

Medial elbow