The first CMC joint of the thumb is considered to be a(n) _______ joint.

Question

Quizplus · Accepted Answer

The first carpometacarpal (CMC) joint of the thumb is a saddle joint. This is because the joint is formed by the articulation of the trapezium bone of the wrist and the base of the first metacarpal bone of the thumb, and the surfaces of these bones are shaped like a saddle. This type of joint allows for a variety of movements, including flexion, extension, abduction, adduction, and opposition.

The First CMC Joint of the Thumb Is Considered to Be