Actions for Unit 3

Brachialis

flexes

brachioradialis

flexes

biceps brachii

flexes and supinates

triceps brachii

extends

pronator teres

pronates forearm

flexor capri radialis

flexes and abducts hand at wrist

flexor capri ulnaris

flexes and adducts hand at wrist

extensor capri radialis

extends and abducts hand at wrist

extensor capri ulnaris

extends writs and adducts hand at wrist

palmaris longus

flexes wrist

extensor digitorum

extends fingers

Iliacus and psoas major

flexes

gluteus maximus

extends, lateral rotation

gluteus medius

abduct, medial rotation

piriformis

lateral rotation and abducts

adductor longus

adducts and flexes

adductor magnus

adducts and flexes

pectineus

flexes and medial rotation

obturator internus

lateral rotation and abducts the thigh

tensor fascia latae

abducts and medially rotates thigh

gracilis

flexes knee and adducts femur

sartorius

flexes knee and femur, laterally rotates femur

rectus femoris

extends leg at knee

vastus lateralis

extends leg at knee

vastus medialis

extends leg at knee

Semitendinosus

flex leg and extends thigh

semimembranosus

flex leg and extends thigh

biceps femis

flex leg and extends thigh

Gastrocnemius

plantar flexes foot

soleus

plantar flexes foot

tibialis anterior

dorsiflexes foot

tibialis posterior

plantar flexes and inverts foot

Extensor digitorum longus

prime mover of toe extension and dorsiflexes the foot

Flexor digitorum longus

plantar flexes and inverts foot, flexes the toes and helps foot grip the group

trapezius

elevates, depresses, rotates and retracts scapula

rhomboid major

rotates and retracts scapula

rhomboid minor

rotates and retracts scapula

levator scapulae

elevates scapula

pectoralis minor

depresses, protracts, and rotates scapula