If the human carpometacarpal thumb joint were a uniaxial hinge joint instead of a saddle joint...
a) the thumb would exhibit rotational movement.
b) the ability to grasp and hold objects would be hindered.
c) then sliding and twisting motions would become prominent.
d) it would allow for abduction and adduction but not flexion and extension.
Answer: b) the ability to grasp and hold objects would be hindered.
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