Functions of Muscles

Research using two resources minimum locating information about muscles and muscle fibers. Needs to have introduction, body, and conclusion. This is going to be ninth grade remedial level writing. This one page paper can be about skeletal, smooth, cardiac, muscle fibers, slow or fast twitch muscle fibers, concentric contraction, eccentric contraction, or isometric contraction. Some things to keep in mind are naming things such as: what are muscles? What are the functions of muscles? why are they so important within the human body? what are three different types of muscles? What are the two basic types of muscle fibers? what are different types of muscle contractions?