Tooth

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The human body is a complex and dynamic system that performs numerous functions to maintain life. The brain processes information, controls movement, and regulates various bodily functions such as heart rate, breathing, and digestion. The skeletal system provides support and protection for the body, while the muscular system enables movement and maintains posture. The circulatory system transports oxygen and nutrients to cells throughout the body, and the nervous system transmits signals between different parts of the body.