Question

The radius and ulna form articulations at both the elbow and wrist joint complexes, and also with each other. Which one of the following statements about the joints of the radius and ulna is correct?

A) The radius and ulna do not articulate with each other.
B) The radius and ulna only articulate at the wrist joint.
C) The radius and ulna articulate at both the elbow and wrist joints.
D) The radius articulates with the humerus, not the ulna.

Answer 1

The radius and ulna articulate at both the elbow and wrist joints.

Step-by-step explanation:

The correct statement about the joints of the radius and ulna is that the radius and ulna articulate at both the elbow and wrist joints. The radius and ulna form articulations with each other, as well as with the carpal bones in the wrist. This allows for rotation of the carpus with respect to the long axis of the limb.