List of systems of the human body

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The main systems of the human body are as follows:

0 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.

1 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.

2 Endocrine system:

  1. Provides chemical communications within the body using hormones.

3 Integumentary system/ Exocrine system:

  1. Skin, hair, nails, sweat and other exocrine glands.

4 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.

5 Muscular system/Skeletal system:

  1. Enables the body to move using muscles.

  2. Bones supporting the body and its organs.

6 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.

7 Renal system / Urinary system:

  1. The system where the kidneys filter blood.

8 Reproductive system:

  1. The sex organs required for the production of offspring.

9 Respiratory system:

  1. The lungs and the trachea that bring air into the body.