The large range of movement of the thumb compared to that of the fingers is derived from the structure of which of the following?

Question

Quizplus · Accepted Answer

The large range of movement of the thumb is derived from the structure of its carpometacarpal joint, also known as the thumb's saddle joint. This joint allows for flexion, extension, adduction, abduction, opposition, and reposition of the thumb. The intermetacarpal joint and metacarpophalangeal joint also contribute to the thumb's movement, but they are not primarily responsible for its large range of motion.

The Large Range of Movement of the Thumb Compared to That