At the Distal End of the Radius, the ________ on the Lateral

Question

At the distal end of the radius, the ________ on the lateral surface stabilizes the joint.
A) head
B) trochlea
C) styloid process
D) ulnar notch
E) capitulum

Accepted Answer

The styloid process is a bony projection at the distal end of the radius that provides attachment for ligaments and tendons and stabilizes the wrist joint on the lateral surface. The head of the radius is on the medial side and articulates with the ulna to form the proximal radioulnar joint. The trochlea and capitulum are both located on the humerus and form the distal end of the humerus, which articulates with the radius and ulna to form the elbow joint. The ulnar notch is a depression on the medial surface of the distal end of the radius that articulates with the head of the ulna to form the distal radioulnar joint.