Which Is an Eccentric Function of the Extensor Pollicis Brevis

question 14

Multiple Choice

Which is an eccentric function of the extensor pollicis brevis?

• A)restrains/slows flexion of the thumb at the carpometacarpal and metacarpophalangeal joints
• B)restrains/slows extension of the thumb at the carpometacarpal and metacarpophalangeal joints
• C)restrains/slows radial deviation (abduction)of the hand at the wrist joint
• D)restrains/slows flexion of the forearm at the elbow joint

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