Muscles Research Paper

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Many people think that muscles are mainly just for being strong and fit, but muscles do much more than that. Muscles are cellular fibers that contract and retract on bones, causing movement. This allows people and animals to move from one place to the other. There are several different types of muscles, including fast and slow twitch muscles, skeletal muscles, striated muscles, smooth muscles, and more. Every muscle serves a purpose, and each is vital to a person’s well-being. Muscles work for more than just movement. One of the most important organs in the body, the heart, is made up of contracting and retracting muscles that pump oxygen-rich blood throughout the body. The mandible has many strong muscles attached to it that are used

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