Muscles of the shoulder and upper limbs

origin of pectoralis minor

ribs 3-5

insertion of pectoralis minor

coracoid process of scapula

action of pectoralis minor

draws scapula laterally and forward against chest wall

rotates scapula and depresses apex of shoulder

origin of serrates anterior

ribs 1-12

insertion of serratus anterior

medial border of scapula

action of serratus anterior

draws scapula laterally and forward against chest wall

protracts scapula

fixes scapula during arm abduction

origin of trapezius

external occipital protuberance

spinous process of C7-T4

insertion of trapezius

acromion and spine of scapula

acromial end of clavicle

action of trapezius

elevates and depress shoulder apex

rotates and retracts scapula

origin of levator scapulae

transverse process of C1 to C4

insertion of levator scapulae

superior angle to medial border of scapula

origin of rhomboid minor

spinous process of C7-T1

insertion of rhomboid minor

medial border of scapula

action of rhomboid minor

retracts scapula, braces shoulder

fixes scapula during arm movement

action of rhomboid major

retracts scapula, braces shoulder

fixes scapula during arm movement

origin of rhomboid major

spinous process of T2-T5

insertion of rhomboid major

medial border of scapula

Rotator cuff (SITS)

supraspinatus, infraspinatus, teres minor, subscapularis

origin of pectoralis major

sternal end of clavicle

lateral margin of sternum

costal cartilage 1-7

insertion of pectoralis majori

intertubercular sulcus

greater tubercle of humerus

action of pectoralis major

flexes, adducts, medially rotates humerus

origin of latissimus dorsi

spinous process of T7-L5

iliac crest

insertion of latissimus dorsi

intertubercular sulcus of humerus

action of latissimus dorsi

adducts and medially rotates humerus

extends shoulder joint

origin of deltoid

acromion zend spine of scapula

clavicle

insertion of deltoid

deltoid tuberosity

action of deltoid

flexion, extension, rotation, abduction, adduction of arm

origin of teres major

inferior angle of scapula

insertion of teres major

lesser tubercle

action of teres major

extends end medial rotates humerus

origin of coracobrachialis

coracoid process

insertion of coracobrachialis

medial aspect of humeral shaft

action of coracobrachialis

flexes and medially rotates are

origin of supraspinatus

supraspinous fossa

insertion of supraspinatus

greater tubercle

action of supraspinatus

arm abduction 

origin of infraspinatus

infraspinous fossa

insertion of infraspinatus

greater tubercle

action of infraspinatus

lateral rotation of humerus

origin of teres minor

lateral border and psoertior surface of scapula

insertion of teres minor

greater tubercle

action of teres minor

lateral rotation of humerus

action ofsubscapularis

medial rotation of humerus

insertion of subscapularis

lesser tubercle

origin of subscapularis

subscapular fossa

origin of brachialis

anterior surface of distal half of humerus

insertion of brachilais

coronoid process and tuberosity of ulna

action of brachialis

prime mover of elbow flexion

origin of biceps brachii

long head - superior margin of glenoid cavity

short head- coracoid process

insertion of biceps brachii

radial tuberosity

forearm fascia

action of biceps brachii

forearm supination

synergist in elbow flexion

innervation of biceps brachii

musculocutaenous nerve

innervation of brachialis

musculocutaenous and radial nerve

origin for triceps brachii

long head- inferior margin of glenoid cavity

lateral head- posterior surface of proximal end of humerus

medial head- posterior surface of humeral shaft

insertion for triceps brachii

olecranon

forearm fascia

action of triceps brachii

elbox extension

long head extension and adducts humerus

innervation of triceps brachii

radial nerve

origin of brachioradialis

lateral supracondylar ridge

insertion of brachioradialis

radius near styloid process

action of of brachioradialis

elbow flexion

innervation of brachioradialis

radial nerve

origin of anconeus

lateral epicondyle

insertion of anconeus

olecranon

posterior surface of ulna

action of anconeus

elbox extension

innervation of anconeus

radial nerve

origin of pronator quadratus

anterior surface of distal tuna

insertion of pronator quadratus

anterior surface of distal radius

action of pronator quadratus

prime mover of forearm pronation

innervation of pronator quadratus

median nerve

innervation of pronator teres

median nerve

action of pronator teres

assist in pronation

weakly flexes elbow

insertion of pronator teres

lateral surface of radial shaft

origin of pronator teres

medial epicondyle, coronoid process

origin of supinator

lateral epicondyle, humerus

insertion of supinator

proximal radius

action of supinator

forearm supination