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.
Answer: true is your answer hope this helped
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Explanation:
Answer:
True. You need it. But not a lot.
Explanation:
C. Increasing your calorie intake
Research has found that many of its complications include stroke, heart disease and failiure. Some complications of atrial fibrillation include: Blood clots. The main answer to this question heart and blood. I hope I have answered your question.
