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Which Is an Action of the Abductor Pollicis Brevis

Question 72

Multiple Choice

Which is an action of the abductor pollicis brevis?


A) medial rotation of the thumb at the carpometacarpal joint
B) abduction of the thumb at the carpometacarpal joint
C) lateral rotation of the thumb at the carpometacarpal joint
D) flexion of the index finger (finger number two) at the carpometacarpal joint

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