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List of systems of the human body

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The main systems of the human body are:

  1. Circulatory system:
    • Circulates blood around the body via the heart, arteries and veins, delivering oxygen and nutrients to organs and cells and carrying their waste products away.
    • Keeps the body's temperature in a safe range.
  2. Digestive system and Excretory system:
  3. Endocrine system:
    • Influences the function of the body using hormones.
  4. Integumentary system / Exocrine system:
  5. Immune system and lymphatic system:
    • Defends the body against pathogens that may harm the body.
    • The system comprising a network of lymphatic vessels that carry a clear fluid called lymph.
  6. Muscular system:
    • Enables the body to move using muscles.
  7. Nervous system:
    • Collects and processes information from the senses via nerves and the brain and tells the muscles to contract to cause physical actions.
  8. Renal system and Urinary system
    • The system where the kidneys filter blood to produce urine, and get rid of waste.
  9. Reproductive system:
  10. Respiratory system:
  11. Skeletal System:
    • Bones maintain the structure of the body and its organs.

 

See also[edit]