Upper Extremity Muscle Exam

pec minor action

protraction, depression, downward rotation

pec minor insertion

scapula

pec minor origin

ribs

serratus anterior action

protraction, upward rotation

serratus anterior origin

ribs

serratus anterior insertion

scapula

rhomboids action

elevation, retraction, downward rotation

rhomboids origin

cervical and thoracic vertebrae

rhomboids insertion

scapula

trapezius (upper) action

elevation, upward rotation, head/neck extension

trapezius (upper) origin

skull

trapezius (upper) insertion

clavicle

trapezius (lower) action

retraction, depression, upward rotation

trapezius (lower) origin

cervical and thoracic vertebrae

trapezius (lower) insertion

scapula

trapezius (middle) action

retraction, elevation, upward rotation

trapezius (middle) origin

cervical and thoracic vertebrae

trapezius (middle) insertion

scapula

levator scapulae action

elevation

levator scapulae origin

cervical vertebrae

levator scapulae insertion

scapula

biceps brachii action

flexion, horizontal abduction, abduction, supination

biceps brachii origin

scapula

biceps brachii insertion

radius

deltoid (anterior) action

abduction, flexion, horizontal adduction, internal rotation

deltoid (anterior) origin

clavical

deltoid (anterior) insertion

humerus

deltoid (posterior) action

abduction, extension, horizontal abduction, external rotation

deltoid (posterior) origin

scapula

deltoid (posterior) insertion

humerus

deltoid (middle) action

abduction, horizontal abduction

deltoid (middle) origin

acromion process

deltoid (middle) insertion

humerus

pec major (upper) action

flexion, abduction, adduction, internal rotation, horizontal abduction

pec major (upper) origin

clavicle

pec major (upper) insertion

humerus

pec major (lower) action

adduction, internal rotation, horizontal adduction

pec major (lower) origin

ribs and sternum

pec major (lower) insertion

humerus

latissmus dorsi action

extension, adduction, internal rotation, horizontal abduction

lattissmus dorsi origin

pelvis, sacrum, thoracic and lumbar vertebrae

lattissmus dorsi insertion

humerus

teres major action

extension, adduction, internal rotation

teres major origin

scapula

teres major insertion

humerus

supraspinatus action

abduction

supraspinatus origin

scapula

supraspinatus insertion

humerus

subscapularis action

internal rotation, adduction, extension

subscapularis origin

scapula

subscapularis insertion

humerus

infraspinatus action

extension, external rotation, horizontal abduction

infraspinatus origin

scapula

infraspinatus insertion

humerus

teres minor action

extension, horizontal abduction, external rotation

teres minor origin

scapula

teres minor insertion

humerus

triceps brachii (long head) action

extension, adduction, horizontal abduction

triceps brachii (long head) origin

scapula

triceps brachii (long head) insertion

ulna

brachialis action

flexion

brachialis origin

humerus

brachialis insertion

ulna

brachioradialis action

flexion, pronation, supination

brachioradialis origin

humerus

brachioradialis insertion

radius

triceps brachii (med head) action

extension

triceps brachii (med head) origin

humerus

triceps brachii (med head) insertion

ulna

triceps brachii (lat head) action

extension

triceps brachii (lat head) origin

humerus

triceps brachii (lat head) insertion

ulna

anconeus action

extension

anconeus origin

humerus

anconeus insertion

ulna

supinator action

supination

supinator origin

humerus, ulna

supinator insertion

radius

pronator quadratus action

pronation

pronator quadratus origin

ulna

pronator quadratus insertion

radius

pronator teres action

pronation, flexion

pronator teres origin

humerus, ulna

pronator teres insertion

radius

flexor carpi radialis action

wrist flexion, radial deviation, pronation, elbow flexion

flexor carpi radialis origin

humerus

flexor carpi radialis insertion

metacarpals

flexor carpi ulnaris action

wrist flexion, ulnar deviation, elbow flexion

flexor carpi ulnaris origin

humerus, ulna

flexor carpi ulnaris insertion

pinky, carpals

palmaris longus action

wrist flexion, elbow flexion

palmaris longus origin

humerus

palmaris longus insertion

metacarpals

flexor digitorum profundus action

wrist flexion, finger flexion

flexor digitorum profundus origin

ulna

flexor digitorum profundus insertion

phalanges

flexor digitorum superficialis action

wrist flexion, finger flexion, elbow flexion

flexor digitorum superficialis origin

humerus, ulna, radius

flexor digitorum superficialis insertion

phalanges

flexor pollicis longus action

thumb flexion, wrist flexion, radial deviation