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Body Systems
| System | Function |
|---|---|
| Skeletal | Protects and supports the body organs |
| Cardiovascular | Blood vessels transport blood, which carries oxygen, carbon dioxide, nutrients, wastes, etc. |
| Digestive | Breaks down food to enter the blood to distribute to body cells |
| Respiratory | Keeps blood constantly supplied with oxygen and removes carbon dioxide |
| Urinary | Eliminates nitrogenous wastes, regulates water, electrolyte, and acid balance of blood |
| Muscular | Allows movement, facial expressions, maintains posture, produces heat |
| Lymphatic | Picks up fluid leaked from blood vessels and returns it to blood |
| Integumentary | External body covering; protects deeper tissues |
| Nervous | Fast-acting control system of the body |
| Endocrine | Glands secrete hormones (growth, reproduction, nutrient use) |
| Immunity | Fights off infection and diseases |
| Reproductive | Produces offspring |