OT503: Shoulder arm muscles attachments

Subscapularis

O: Subscapular fossa

I: Lesser tubercle of humerus

Supraspinatus

O: Supraspinous fossa

I: Greater tubercle of humerus

Deltoid

O: Lateral clavicle, acromion, scapular spine

I: Deltoid tuberosity

Teres Major

O: Inferior angle and lateral border of scapula

I: lesser tubercle of humerus

Pectoralis Major

O: Medial clavicle, sternum, cartilage of ribs 1-6

I: Greater tubercle of humerus

Coracobrachialis

O: Coracoid process

I: Humerus midshaft

Latissimus dorsi

O: Inferior angle of scapula, spinous processes of T7-T12, lower ribs; TLF; posterior iliac crest

I: Intertubercular groove of humerus

Subclavius

O: 1st rib

I: Clavicle

Brachialis

O: Anterior humerus

I: Ulnar tuberosity

Biceps brachii

O: Supraglenoid tubercle, coracoid process

I: radial tuberosity

Triceps brachii

O: Infraglenoid tubercle, posterior humerus

I: Olecranon

Serratus anterior

O: External upper ribs

I: Medial border of scapula

Pectoralis Minor

O: Ribs 3-5

I: Coracoid process

Teres minor

O: lateral border of scapula

I: Greater tubercle of humerus

Levator scapulae

O: Transverse processes of C1-C4

I: Medial border of scapula

Trapezius

O: external occipital protuberance, superior nuchal line; ligamentum nuchae, spinous processes of C7-T12

I: Lateral clavicle, acromion, scapular spine

Rhomboids major

O: Spinous processes of T2-T5

I: Medial border of scapula

Rhomboid minor

O: Spinous processes of C7-T1

I: Medial border of scapula