1. The three types of muscles in the muscular system are, smooth muscle, cardiac muscle, and skeletal muscle, and their functions are to start the movement of food, heart movement, and control the body's contractions.
2. The sliding filament which belongs to the muscle contraction, states that when signal, the acting filaments within each slide toward another.
3. Exercise can change muscle strength by stressing the muscle.It can also change muscle function by squeezing, exerting pressure on the space inside the tube it surrounds.
4. Muscle strength is determined by the thickness of the fibers and on how many of them contract at one time.
5. Paralysis of smooth muscles are life threatening, because the digestive system is a part of the smooth muscles.
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