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sp2606 [1]
3 years ago
5

How does the muscles grow and get stronger, and what causes this?

Health
1 answer:
Vlada [557]3 years ago
3 0
The 650 skeletal muscles in the human body contract when they receive signals from motor neurons, which are triggered from a part of the cell called the sarcoplasmic reticulum. Motor neurons tell your muscles to contract and the better you become at having those signals tell your muscles to contract, the stronger you can get.
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jok3333 [9.3K]

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Intensity of the exercise

Explanation:

Because of the stress and other factors of you not being use to it. Your body needs a challenge in order to improve

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Closing an orifice partial is called
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2 years ago
11. The following are importance why couples must undergo courtship, EXCEPT.
hodyreva [135]

Answer:

C. For the couple to develop misunderstanding and acceptance.

Explanation:

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5 0
3 years ago
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