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All of the body’s movement is made possible by muscular tissue. Muscle contractions result in the movement of body parts. Skeletal muscle, smooth muscle, and cardiac muscle are the three forms of muscular tissue. Skeletal muscle tissue The striated or striped skeletal (voluntary) muscle fiber is controlled by the individual’s will. As a result, “voluntary” … Read more

The cell is the most basic structural unit of living matter because it is the smallest and most abundant. The plasma membrane, nucleus, and cytoplasm make up a typical cell. What is a plasma membrane and what does it do? The plasma membrane, which surrounds each cell, is permeable only to certain molecules. It regulates … Read more