abductor digiti minimi - muscle that abducts the little finger

adductor pollicis - muscle that adducts the thumb

abductor pollicis brevis - muscle that abducts the thumb

abductor pollicis longus - muscle that inserts into the first metacarpal

anconeus - small muscle on the lateral posterior elbow that extends the forearm

anterior compartment of the arm - (anterior flexor compartment of the arm) the biceps brachii, brachialis, brachioradialis, and their associated blood vessels and nerves

anterior compartment of the forearm - (anterior flexor compartment of the forearm) deep and superficial muscles that originate on the humerus and insert into the hand

biceps brachii - two-headed muscle that crosses the shoulder and elbow joints to flex the forearm while assisting in supinating it and flexing the arm at the shoulder

brachialis - muscle deep to the biceps brachii that provides power in flexing the forearm.

brachioradialis - muscle that can flex the forearm quickly or help lift a load slowly

coracobrachialis - muscle that flexes and adducts the arm

deep anterior compartment - flexor pollicis longus, flexor digitorum profundus, and their associated blood vessels and nerves

deep posterior compartment of the forearm - (deep posterior extensor compartment of the forearm) the abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus, extensor indicis, and their associated blood vessels and nerves

deltoid - shoulder muscle that abducts the arm as well as flexes and medially rotates it, and extends and laterally rotates it

dorsal interossei - muscles that abduct and flex the three middle fingers at the metacarpophalangeal joints and extend them at the interphalangeal joints

extensor carpi radialis brevis - muscle that extends and abducts the hand at the wrist

extensor carpi ulnaris - muscle that extends and adducts the hand

extensor digiti minimi - muscle that extends the little finger

extensor digitorum - muscle that extends the hand at the wrist and the phalanges

extensor indicis - muscle that inserts onto the tendon of the extensor digitorum of the index finger

extensor pollicis brevis - muscle that inserts onto the base of the proximal phalanx of the thumb

extensor pollicis longus - muscle that inserts onto the base of the distal phalanx of the thumb

extensor radialis longus - muscle that extends and abducts the hand at the wrist

extensor retinaculum - band of connective tissue that extends over the dorsal surface of the hand

extrinsic muscles of the hand - muscles that move the wrists, hands, and fingers and originate on the arm

flexor carpi radialis - muscle that flexes and abducts the hand at the wrist

flexor carpi ulnaris - muscle that flexes and adducts the hand at the wrist

flexor digiti minimi brevis - muscle that flexes the little finger

flexor digitorum profundus - muscle that flexes the phalanges of the fingers and the hand at the wrist

flexor digitorum superficialis - muscle that flexes the hand and the digits

flexor pollicis brevis - muscle that flexes the thumb

flexor pollicis longus - muscle that flexes the distal phalanx of the thumb

flexor retinaculum - band of connective tissue that extends over the palmar surface of the hand

hypothenar - group of muscles on the medial aspect of the palm

hypothenar eminence - rounded contour of muscle at the base of the little finger

infraspinatus - muscle that laterally rotates the arm

intermediate - group of midpalmar muscles

intrinsic muscles of the hand - muscles that move the wrists, hands, and fingers and originate in the palm

latissimus dorsi - broad, triangular axial muscle located on the inferior part of the back

lumbrical - muscle that flexes each finger at the metacarpophalangeal joints and extend each finger at the interphalangeal joints

opponens digiti minimi - muscle that brings the little finger across the palm to meet the thumb

opponens pollicis - muscle that moves the thumb across the palm to meet another finger

palmar interossei - muscles that abduct and flex each finger at the metacarpophalangeal joints and extend each finger at the interphalangeal joints

palmaris longus - muscle that provides weak flexion of the hand at the wrist

pectoral girdle - shoulder girdle, made up of the clavicle and scapula

pectoralis major - thick, fan-shaped axial muscle that covers much of the superior thorax

pectoralis minor - muscle that moves the scapula and assists in inhalation

pronator quadratus - pronator that originates on the ulna and inserts on the radius

pronator teres - pronator that originates on the humerus and inserts on the radius

retinacula - fibrous bands that sheath the tendons at the wrist

rhomboid major - muscle that attaches the vertebral border of the scapula to the spinous process of the thoracic vertebrae

rhomboid minor - muscle that attaches the vertebral border of the scapula to the spinous process of the thoracic vertebrae

rotator cuff - (also, musculotendinous cuff) the circle of tendons around the shoulder joint

serratus anterior - large and flat muscle that originates on the ribs and inserts onto the scapula

subclavius - muscle that stabilizes the clavicle during movement

subscapularis - muscle that originates on the anterior scapula and medially rotates the arm

superficial anterior compartment of the forearm - flexor carpi radialis, palmaris longus, flexor carpi ulnaris, flexor digitorum superficialis, and their associated blood vessels and nerves

superficial posterior compartment of the forearm - extensor radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi, extensor carpi ulnaris, and their associated blood vessels and nerves

supinator - muscle that moves the palm and forearm anteriorly

supraspinatus - muscle that abducts the arm

teres major - muscle that extends the arm and assists in adduction and medial rotation of it

teres minor - muscle that laterally rotates and extends the arm

thenar - group of muscles on the lateral aspect of the palm

thenar eminence - rounded contour of muscle at the base of the thumb

trapezius - muscle that stabilizes the upper part of the back

triceps brachii - three-headed muscle that extends the forearm