At the base: The trapezio-metacarpal joint is also known as the 1st carpo-metacarpal joint at the base of the thumb. The carp-metacarpal joints are at the base of the fingers within the hand between the wrist bones (carpi) and the metacarpal bones of the fingers/hand
Answered 11/9/2014
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The CMC joint : Or carpometacarpal joint is at the base of the metacarpal The side that is towards the wrist away from the knuckle. in the thumb the CMC joint is the trapeziometacarpal join
Answered 6/10/2017
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