2.2 Muscles of Upper + Lower Arm ACTIONS (LAB)

Triceps Brachii (Upper Arm)

extension of elbow/forearm

Biceps Brachii (Upper Arm)

flexion of elbow/forearm

Brachialis (upper Arm)

flexes forearm

Anconeus (Lower Arm)

Extends elbow (Triceps synergist)

Brachioradialis (lower/upper? arm)

synergist in forearm Flexion

Pronator Teres (Lower Arm)

Pronates the forearm

Flexor Carpi Radialis (Lower Arm)

flexor of wrist/ hand

Palmaris Longus (lower arm)

flexes wrist/ hand

Flexor Carpi Ulnaris (lower arm)

flexes wrist/ hand

Flexor Digitorum Superficialis (lower arm)

flexes wrist/ hand

Flexor Pollicis Longus (lower arm)

flexes Thumb (pollex)

Flexor Digitorum Profundus (lower arm)

Flex wrist/hand

Pronator Quadratus (lower arm)

Pronates forearm

Extensor Carpi Radialis Longus (lower arm)

extends wrist/hand

Extensor Carpi Radialis Brevis (lower arm)

extends wrist/hand

Extensor Digitorum (lower arm)

extends wrist/ hand

Extensor Carpi Ulnaris (lower arm)

Extends wrist/ hand

Extensor Pollicis Longus (lower arm)

extend thumb

Extensor Pollicis Brevis (lower arm)

extend thumb

Abductor Pollicis Longus (lower arm)

abducts thumb

Supinator (lower arm)

with Biceps Brachii supinates forearm