Muscles are made up of elastic fibers that not only give general shape to the body, but also contract to move its various parts. The body gets its frame and shape from the skeleton muscles. These are voluntary muscles. The contraction of these muscles is consciously determined by the living being. In other words, living beings have total control over their body.
A human body gets its shape and all possible flex movements due to the presence of muscles. The contraction of the muscles voluntarily helps in moving the legs or hands while walking, or to turn the neck when somebody calls from behind. The muscles are made up of elastic fibers that make these movements possible.
The human body consists of various systems performing a multitude of functions. Every action is determined and stimulated as per the nervous system. Similarly, the actions to move a limb or any other body part are conditioned by the muscular system. Muscle, known for its elasticity, contracts to help the various body movements. Not only this, muscles also determine the shape of the human body. It is. therefore, necessary to keep the muscles in shape, for an active and proper functioning of the body. This can be achieved by Building Muscles.
The human body is a complex system. It consists of cells or small units that are organized to function together. Every body function is coordinated by the nerve cells in the brain, whether it is movement of the eyes or the heartbeat. In the body, Muscles are one of the most important constituents. They account for 40 percent of body weight. These are the tissues or materials with specialized cells. Muscles are made up of elastic fibers that can contract and relax. The contractile nature of Muscle makes possible various body movements, an upright posture and specific shape to a human body. For example, lifting a box involves the action of Muscles in the hands.
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