Moving the proximal row of carpals on the radius in a volar direction increases which wrist motion?
A)Flexion
B)Extension
C)Radial deviation
D)Ulnar deviation

Question

Quizplus · Accepted Answer

Moving the proximal row of carpals on the radius in a volar direction (towards palm) will increase extension at the wrist joint. This is because the proximal row of carpals includes the scaphoid, lunate, and triquetrum which articulate with the radius at the wrist joint. Moving them in a volar direction will cause the hand to move away from the forearm and increase the angle between them, resulting in extension at the wrist joint.

Moving the Proximal Row of Carpals on the Radius in a Volar