Skeletal and Muscular Systems
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That was a long run, my muscles are hurting!
I'm gonna need to drink some water so I don't become dehydrated
My arms are so tired,it's even hard to grab the water bottle. My muscles are so tired
Your brain, especial the nervous system tells your mucles to contract and stretch out when you are running or walking
In order for your muscles to move, they have to work with the bones that allow the muscles to move and help you walk or do any other activity.
In order to grab the water bottle, the muscles get messages from the brain to tell the bones to move and grab the water bottle.
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