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:
I'm pretty sure all of them
Explanation:
Answer:
hurting your ankle while jogging, but deciding to continue running
using fitness supplements and energy bars without paying attention to the nutrition information
exercising outside during warm weather without paying attention to drinking enough water
Explanation:
Answer:
Primary Axillary Hyperhidrosis is what this man has
Explanation:
