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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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Jemekeib Jemekeib
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9 years ago
Explain how the nervous system controls the contraction of skeletal muscles, including how the nervous system determines which muscles contract and how forcefully they contract
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thebiologistthebiologist
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Mustafa Kemal ATATÜRK

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Jemekeib Author
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9 years ago
Thank you!
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9 years ago Edited: 9 years ago, drjnk
The skeletal muscle fibers are innervated by large, myelinated nerve fibers that originate from large motoneurons in the anterior horns of the spinal cord. Each nerve fiber, after entering the muscle belly, normally branches and stimulates from three to several hundred skeletal muscle fibers. Each nerve ending makes a junction, called the neuromuscular junction, with the muscle fiber near its midpoint. The action potential initiated in the muscle fiber by the nerve signal travels in both directions toward the muscle fiber ends.
Post Merge: 9 years ago

Check this: http://www.fsps.muni.cz/~tvodicka/data/reader/book-4/05.html
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