Movement at a joint

Question 1

flexion

Answer 1

or bending
decreases the angle between articulating bones (closer together)
- when elbow flexes, the lower arm moves closer to upper arm

Question 2

extension

Answer 2

or straightening
increases angle between articulating bones
- when knee extended, the lower leg moves further way from the upper

Question 3

abduction

Answer 3

movement away from midline of the body

Question 4

adduction

Answer 4

movement back towards the midline