O- Occipital bones, spines of C7 and all thoracic vertebrae

I- Spine and acromion of scapula

A- Extends, elevates, rotates, and retracts scapula; secondary: extends head

O- Lower 6 thoracic vertebrae, lumbar vertebrae, iliac crest

I- Intertubercular sulcus of humerus

A-Extends, adducts, and medially rotates arm

O- Ribs 1-8

I- anterior aspect of medial border of scapula

A- Boxer's muscle (protracts and laterally rotates scapula)

N Pectoralis minor

O- Ribs 3, 4 ,5

I- coracoid process of scapula

A- draws scapula anteriorly and inferiorly

O-Spinois process of C7-T5

I- Medial border of scapula

A- stablizes scapula

A- Raises ribs for inspiration

A- Depresses ribs for forced expiration

O- Costal cartilages of lowest ribsm lumbar vertebrae

I-central tenton

A- primer muscle of inspiration

Phrenic nerves- c3, c4, c5

O- Supraspinous fossa of scapula

I- Greater tubercle of humerus

A- Abducts and stablizes arm

N- Infraspinatus

O- Infraspinous fossa of the scapula

I- Greater tubercle of the humerus

A- laterally rotates arm

O- Subscapular fossa of the scapula

I- Lesser tubercle of the humerus

A- medially rotates arm and stabilizes shoulder joints

SITS

Supraspinatus, infraspinatus, teres minor, and subscapularis

O- posterior surface of the inferior angel of scapula

I- lesser tubercle of the humerus

A- synergist to the latissimus dorsi (extends, elevates, and rotates arm)

O- lateral border of scapula

I- greater tubercle of humerus

A- lateral rotation of humerus

O- clavicle, sternum, and costal cartilages

I- intertubercular sulcus of humerus

A- flexes, adducts, and medially rotates arm

O- clavicle, spine and acromion of scapula

I- deltoid tuberosity of humerus

A- Abducts arm

O- coracoid process and supraglenoid tubercle of the humerus

I- radial tuberosity

A- flexes elbow and supinates forearm

O-Distal anterior humerus

I-coronoid process of humerus

A- flexes forearm

O-Lateral supracondylar ridge

I-styloid process of radius

A- flexes forearm

O- Infraglenoid tubercle of the scapula and posterior humerus

I- Olecranon process of the ulna

A- extends forearm

Biceps brachii flexes the elbow and supinates the forearm

Brachialis and brachioradialis both flexes the forearm

Triceps brachii extends the forearm

Pronator teres flexes the forearm and pronates the forearm

O- Medial epicondyle of humerus

I- Lateral radius

A- Pronates and flexes the forearm

O- medial epicondyle of humerus

I- base of 2nd and 3rd metacarpal

A- flexes wrists and abducts hand

O- medial epicondyle of the humerus

I- palmar aponeurosis

A- tenses skin and fascia of palm, weakest flexer of the wrist

O- medial epicondyle of the humerus

I- 5th metacarpal

A- flexes wrist and adducts hand

O- lateral epicondyle and supracondylar ridge of humerus

I- 2nd and 3rd metacarpals

A- extends wrist and abducts wrist

O- lateral epicondyle of humerus

I- digit 2-5

A- extends fingers and wrist; abducts fingers

A- Extends 5th digit

O- Lateral epicondyle of humerus

I- 5th metacarpal

A- extends wrist and adducts wrist

A- Abducts and extends thumb

A- extends thumb

A- Extends thumb