Muscular System The human muscular system is made up of over 600 connecting muscles. All of the muscles work together in sync to make your body move in several different ways. None of the body systems can work without muscles and your muscles can't work without your other body systems so that means that all of your body systems need each other to work and make your body function correctly. Your muscles need protein, nutrients, and …showed first 75 words of 555 total…

…showed last 75 words of 555 total…intestine and those that control sweating and blood pressure. Muscles that are properly exercised react to stimuli quickly and powerfully. As a result of excessive use muscles may have an abnormal increase of an organ or tissue in the muscle cells. That is why if you work out at the gym your muscles become larger, but if you overwork your muscles they decrease sometimes to a fraction of its original size and becomes substantially weaker