types of body movement

Question 1

muscles are attached to

Answer 1

origin and insertion

Question 2

origin

Answer 2

attachment to an immovable or less movable bone

Question 3

insertion

Answer 3

attachment to a movable bone

Question 4

when muscles contracts

Answer 4

the insertion moves toward the origin

Question 5

body movement

Answer 5

occurs when muscles contract across joint

Question 6

flexion

Answer 6

decreases the angle of the joint

bring two bones closer together

typical of bending hinge joints and ball-and-socket joints

Question 7

extension

Answer 7

increases angle between two bones

typical of straightening the elbow or knee

Question 8

hyperextension

Answer 8

extension above 180

Question 9

rotation

Answer 9

movement of a bone around its longitudinal axis

common in ball-and-socket joints

ex- moving the atlas around the dens of axis (shaking head no)

Question 10

abduction

Answer 10

movement of a limb away from midline

Question 11

adduction

Answer 11

movement of a limb toward the midline

Question 12

circumduction

Answer 12

combination of flexion, extension, abduction, and adduction

common in ball-and-socket joints

proximal end of bone is stationary

distal end of bone moves in a circle