muscle functions 💪🏼 Flashcards
epicranius frontalis and occipitalis
raises eyebrows
orbicularis oculi
closes eyes
zygomaticus
smile
orbicularis oris
closes lips
masseter
closes jaw
buccinator
compresses cheek (whistling)
sternocleidomastoid
flexion of neck forward, rotate head
pectoralis major
arm flexion, adduction
deltoid
abduction
rectus abdominis
flexes and rotates vertebral column
biceps brachii
flexes elbow and supinates forearm
pronator teres
pronates forearm
flexor carpi radialis
wrist flexor
trapezius
extends neck
raises, rotates , and retracts (adducts) scapula and stabilizes it
erector spinae
extends and bends the vertebral column
triceps brachii
extends forearm
extensor carpi radialis longus
extends and abducts wrist
extensor digitorum
extends fingers and wrists
can flare (adduct) fingers
rectus femoris
extends knee and flexes thigh at hip
sartorius
flexes, abducts, and laterally rotates thigh
flexes knee
vastus lateralis
extends and stabilizes knee
vastus medialis
extends knee
vastus intermedius
extends knee
tibialis anterior
mover of dorsiflexion
inverts foot
extensor digitorum longus
mover of toe extension
dorsiflexes foot
gluteus maximus
hip extensor
biceps femoris
extends thigh
laterally flexes knee
semitendinosus
extends thigh
flexes knee
medially rotates leg
semimembranosus
extends thigh
flexes knee
medially rotates leg
gastrocnemius
plantar flexes foot
crosses knee joint
flexes knee when foot is dorsiflexed
soleus
plantar flexes foot
