Chapter 4-Muscle Actions

Question 1

abduction

Answer 1

Movement away from midline of the body
ab=away from
duct/o=to bring
-ion=action, condition

Question 2

adduction

Answer 2

movement toward midline of the body
ad=toward
duct/o=to bring
-ion=action, condition

Question 3

flexion

Answer 3

act of bending or being bent
flex/o=to bend
-ion=action, condition

Question 4

extension

Answer 4

movement that brings limb into or toward a straight condition
extens/o=to stretch out
-ion=action, condition

Question 5

dorsiflexion

Answer 5

backward bending, as of hand or foot
dors/o=back of body
flex/o=to bend
-ion=action, condition

Question 6

plantar flexion

Answer 6

bending sole of foot; pointing toes downward
plant/o=sole of foot
-ar=pertaining to

flex/o=to bend
-ion=action, condition

Question 7

eversion

Answer 7

turning outward
e-outward
vers/o=to turn
-ion=action, condition

Question 8

inversion

Answer 8

turning inward
in=inward, without
vers/o=to turn
-ion=action, condition

Question 9

pronation

Answer 9

to turn downward or backward as with the hand or foot

Question 10

supination

Answer 10

turning the palm or foot upward

Question 11

elevation

Answer 11

to raise a body part, as in shrugging the shoulders

Question 12

depression

Answer 12

a downward movement, as in dropping the shoulders

Question 13

circumduction

Answer 13

movement in a circular direction form a central point as if drawing a large, imaginary circle in the air
circum=around
duct/o=to bring
-ion=action, condition

Question 14

opposition

Answer 14

moving thumb away from palm; the ability to move the thumb into contact with the other fingers

Question 15

rotation

Answer 15

moving around a central axis
rotat/o=to revolve
-ion=action, condition