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The _____ tighten(s) the muscles.

muscle fibers
myofibrils
Golgi tendon organ
muscle spindles

2 Answers

2 votes

The answer is D: Muscle Spindles

User Konrad Nowicki
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3 votes
I believe it is D. The muscle spindles tighten(s) the muscles. Hope this helped.
User Kliment
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