Pronation is Defined As

Question

Pronation is defined as
A) a rolling of the distal epiphysis of the radius over the ulna.
B) a twisting of the ulna medially.
C) twisting the forearm so that the palms face anteriorly.
D) the shortening of the angle between the radius and the humerus.
E) movement of the mandible anteriorly, as seen when biting the upper lip.

Accepted Answer

Pronation is the movement that describes the rotation of the forearm in such a way that the palm of the hand is turned posteriorly or downward, involving the rolling of the distal epiphysis of the radius over the ulna.