List of systems of the human body

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The main systems of the human body are:

  1. Cardiovascular / Circulatory system:
    1. 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.
  2. Digestive system / Excretory system:
    1. Mechanical and chemical processes that provide nutrients via the mouth, esophagus, stomach and intestines.
    2. Eliminates waste from the body.
  3. Endocrine system:
    1. Provides chemical communications within the body using hormones.
  4. Integumentary system/ Exocrine system:
    1. Skin, hair, nails, sweat and other exocrine glands.
  5. Lymphatic system / Immune system:
    1. The system comprising a network of lymphatic vessels that carry a clear fluid called lymph.
    2. Defends the body against disease-causing agents.
  6. Muscular system/Skeletal system:
    1. Enables the body to move using muscles.
    2. Bones supporting the body and its organs.
  7. Nervous system:
    1. 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 / Urinary system:
    1. The system where the kidneys filter blood.
  9. Reproductive system:
    1. The sex organs required for the production of offspring.
  10. Respiratory system
    1. The lungs and the trachea that bring air into the body.

See also[edit]