1.)The skeletal system is the frame work for the muscles which gives them the ability to move. 2.) The nervous system and the skeletal system work together by sensory receptors in the joints between bones send signals to the brain about body position and how they need to move. 3.) The muscular system and the nervous system work together by the nervous system sending impulses to the brain to tell them when to move and how to move.
If Cecelia wants to lower her heart rate she should lower the speed she is going at on her tradmill so that she does not have to breath was much for oxygen
