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 endanger 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
  9. Reproductive system:
  10. Respiratory system:
  11. Skeletal system:
    • Bones maintain the structure of the body and its organs.
  12. Hematopoietic system:
    • Creates the cells that travel in blood.

 

See also[edit]