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Bob Tried to Open a Jar of Pickles,but the Lid

Question 98

Multiple Choice

Bob tried to open a jar of pickles,but the lid did not budge.As he struggled against the unmoving lid,the muscles of his hands and arms were

A) in isometric contraction.
B) in dynamic contraction.
C) locked in a stretch reflex.
D) in motor pools.
E) in extension.

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