Chapter 15 Vocabulary------Muscles

fascia

fibrous membrane separating and enveloping muscles

pronation

turning the palm downward

supination

turning the palm upward

striated muscle

a muscle whose fibers are divided by transverse bands into striations

flexion

bending a limb; decreasing the angle between bones

rotation

circular movement around a central point. internal rotation is toward the center of the body. external rotation is away from the center of the body

insertion of a muscle

connection of the muscle to a bone that moves; usually distal on the skeleton

origin of a muscle

connection of the muscle to a stationary bone; usually proximal on the skeleton

abduction

movement away from the midline of the body

adduction

movement toward the midline of the body

visceral muscle

smooth muscle fibers bound together by reticular fibers

extension

straightening of a flexed limb; increasing the angle between the bones of a joint

dorsiflexion

upward movement of the foot; achieved through ankle motion

planter flexion

downward movement of the foot; achieved through ankle motion