The Proximal End of the Ulna Illustrates the Relationship of Form

Multiple Choice

The proximal end of the ulna illustrates the relationship of form and function. The rounded trochlear notch articulates with the hourglass shape of the trochlea. This forms a joint that allows for ________.

A) the hinge like motion of the forearm
B) the curling of the fingers
C) the rotational motion of the forearm
D) the hyper extension of the forearm