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Old 08-20-2011
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MusculoSkeletal Maximum amount of muscle tension

A demonstration is performed during a lecture on muscle physiology in which a student is asked to fully extend his right arm with the palm up. Two large textbooks are placed on his palm, one at a time. Which of the following facilitates the maximum amount of tension that allows the student to keep his arm extended in place under the increasing weight of the books?
(A) Amount of Ca2+ released from the sarcoplasmic reticulum
(B) Amount of muscle phosphocreatine
(C) Amplitude of the action potential
(D) Number of motor units recruited
(E) Rate of cross-bridge recycling
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Old 08-20-2011
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E. Rate of cross bridge recycling
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Old 08-22-2011
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Whats the answer
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Old 08-22-2011
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no clue guessing a or e
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Old 08-22-2011
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Correct Answer

Number of motor units recruited...........
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Old 08-22-2011
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Can anyone explain it.

Whats the source of the question?
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  #7  
Old 08-27-2011
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E rate of cross bridge recycling ?!?! geez thats trickyy !
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