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When you flex or use a muscle, the _____. muscle fibers relax blood flow decreases muscle fibers slide apart myofibrils slide together?
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When you flex or use a muscle, the _____. muscle fibers relax blood flow decreases muscle fibers slide apart myofibrils slide together?

User Ranjith R
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2 Answers

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The answer is:

The myofibrils slide together

User Chongzixin
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8.0k points
5 votes
myofibrils slide together.

the other options don't make sense, and the myofibrils sliding together is the mechanism the muscle uses to generate force.
User Ptone
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8.6k points
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