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Organ systems (body)
| System | Function |
|---|---|
| Circulatory | Transport of blood throughout the body |
| Digestive | Digestion and absorption of nutrients and water, elimination of wastes |
| Endocrine | Regulation and coordination of many activities in the body, including growth, metabolism, reproduction. Blood pressure, water and electrolytes balance, and others |
| Immune | Defense against pathogens |
| Integumentary | Protection against injury and dehydration; defense against pathogens; regulation of body temperature |
| Lymphatic | Collection of extracellular fluid for return to blood; participation in immune defenses; absorption of fats from digestive system |
| Musculoskeletal | Support, protection, ad movement of the body; production of blood cells |
| Nervous | Regulation and coordination of many activities on the body; detection of and response to changes in the internal and external environments; states of consciousness, learning, memory, emotion, others |
| Reproductive | Male: production of sperm; transfer of sperm to female Female: production of eggs; provision of a nutritive environment; states of consciousness; learning; memory, emotions, others |
| Respiratory | Exchange of carbon dioxide and oxygen; regulation of hydrogen ion concentration in the body fluids |
| Urinary | Regulation of plasma composition through controlled excretion of ions, water, and organic wastes |
| Na+ | ECF: 145 ICF: 15 |
| K+ | ECF: 5 ICF: 150 |
| Ca2+ | ECF: 1 ICF: 0.01 |
| Cl- | ECF: 100 ICF: 7 |