Question

What is the correct explanation of the joint movement called protraction?

Multiple Choice
-Posterior movement of a part of the body in the transverse plane
-Movement of a part of the body downward
-Rotation of the palm of the hand and forearm posteriorly or downward
-Anterior movement of a part of the body in the transverse plane

Movement of a part of the body upward

Answer 1

D.Anterior movement of a part of the body in the transverse plane

Protraction is the anterior movement of a bone in the horizontal plane. Retractionoccurs as a joint moves back into position after protraction. Protraction and retraction can be seen in the movement of the mandible as the jaw is thrust outwards and then back inwards.