The muscular system is a system that serves about body movements without relying on properties of muscle contraction cause bone and joint movement, and there is a mutual relationship. In addition, the movement of bones and joints, and also for the movement of organs within the body such as heartbeat, blood vessel compression. Contraction of the stomach, intestine and lung function, etc. These movements. Resulting from work
การแปล กรุณารอสักครู่..