Skeletal System: stores calcium for strong bones, produces red blood cells, protects internal organs, provides shape and support for the body, allows for muscle attachment, Muscular System: provides body movement, Digestive System: breaks down food for energy, Respiratory System: takes in oxygen and removes carbon dioxide, Circulatory System: transports nutrients and oxygen through the body, Nervous System: the control center of the body, Endocrine System: produces hormones to regulate body functions, Integumentary System: protective barrier from microorganisms and UV light, regulates body temperature, fat storage and body insulation, sensory receptor for touch, helps dispose of waste products,

Human Body System Functions

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