Muscles of the pectoral girdle and upper limb

trapezius

trapezius origin

Thoracic and cervical vertebrae, Occipital bone

trapezius insertion

spine of scapula

trapezius action

Rotate scapula, Retract scapula

rhomboideus

rhomboideus origin

thoracic vertebrate

rhomboideus insertion

medial border of scapula

rhomboideus action

stabilize scapula, retract scapula

supraspinatus

supraspinatus origin

thoracic vertebrae

supraspinatus insertion

greater tubercle of humerus

supraspinatus action

stabilize humerus

infraspinatus

infraspinatus origin

infraspinous fossa of scapula

infraspinatus insertion

greater tubercle of humerus

infraspinous action

stabilizes humerus

subscapularis

subscapularis origin

subscapular fossa of scapula

subscapularis insertion

lesser tubercle of humerus

subscapularis action

stabilizes humerus, rotates shoulder medially

teres minor

teres minor origin

subscapular fossa of scapula

teres minor insertion

greater tubercle of humerus

teres minor action

stabilizes humerus, rotates shoulder laterally

teres major

teres major origin

scapula

teres major insertion

lesser tubercle of humerus

teres major action

extend shoulder, adduct shoulder

pectoralis major

pectoralis major origin

sternum, upper costal cartilages

pectoralis major insertion

intertubercular groove of humerus

pectoralis major actions

flex shoulder, adducts shoulder

pectoralis minor

pectoralis minor origin

ribs 3 4 5

pectoralis minor insertion

coracoid process of scapula

pectoralis minor action

protract scapula, depress scapula

serratus anterior

serratus anterior origin

ribs 1-8

serratus anterior insertion

medial border of scapula

serratus anterior action

protract scapula

latissimus dorsi

latissisum dorsi origin

thoracic and lumbar vertebrae

latissimus dorsi insertio

intertubercular groove of humerus

latissimus dorsi action

extends shoulder

deltoid

deltoid origin

thoracic and lumbar vertebrae

deltoid insertion

deltoid tuberosity of humerus

deltoid action

abducts shoulder

triceps brachii

triceps brachii origin

humerus, scapula

triceps brachii insertion

olecranon fossa of ulna

triceps brachii action

extends elbow

biceps brachii

biceps brachii origin

scapula

biceps brachii insertion

radial tuberosity of radius

biceps brachii actions

flexes elbow

brachialis

brachialis origin

humerus

brachialis insertion

coronoid process of ulna

brachialis action

flexes elbow

what are the three synegists for elbow flexion

biceps brachii, brachialis, brachioradialis

brachioradialis

brachioradialis origin

humerus

brachioradialis insertion

styloid process of radius

brachioradialis action

flexes elbow

pronator teres

pronator teres origin

ulna

pronator teres insertion

radius

pronator teres action

pronates forearm

flexor carpi radialis

flexor carpi radialis origin

medial epicondyle of humerus

palmaris longus

medial epicondyle of humerus

palmaris longus insertion

Palmar aponeurosis

palmaris longus actio

flexes wrist

palmaris longus

flexor carpi ulnaris

flexor carpi ulnaris origin

medial epicondyle of humerus

flexor carpi ulnaris insertion

base of metacarpal V

flexor carpi ulanris action

flexes wrist, adducts wrist

what are the synergists for wrist flexion

flexor carpi radialis, palmaris longus, flexor carpi ulnaris

flexor digitorum superficialis

flexor digitorum superficialis origin

medial epicondyle of humerus

flexor digitorum superficialis insertion

middle phalanges of digits

flexor digitorum superficialis action

flex fingers

extensor digitorum

extensor digitorum origin

lateral epicondyle of humerus

extensor digitorum insertion

distal phalanges of fingers

extensor digitorum action

extend fingers

extensor carpi ulnaris

extensor carpi ulanris origin

lateral epicondyle of humerus

extensor carpi ulnaris insertion

base of metacarpal V

extensor carpi ulnaris actio

extend wrist, adduct wrist

synergists of wrist extension and adduction

extensor carpi radialis, extensor carpi ulnaris

flexor retinaculum

extensor retinaculum

palmar aponeurosis

thenar muscles

thenar muscles action

flex thumb, adduct thumb

palmar muscles

palmar muscles action

abduct fingers, adduct fingers, flex fingers