Muscle actions

Adductors

extensors

pronators

Levators

Abductors

sphincters

rotators

flexors

depressors

supinators

rotate a part on its axis

move toward a part or to the midline

palm down

Move away from a part

straighten a joint

bend a joint

ring-like muscles that decrease the size of body opening

palm up

downward movement of a part

lift a part