The size principle:

A. refers to the fact that large ? motor neurons are recruited before small ones
B. refers to the fact that large and small ? motor neurons are recruited simultaneously
C. predicts that ? and ? motor neurons are activated simultaneously during a movement
D. predicts that ? motor neurons are activated before ? motor neurons during a movement
E. is a consequence of small motor neurons being more excitable than large motor neurons


ANS: E

Anatomy & Physiology

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