List of systems of the human body

From Wikipedia, the free encyclopedia

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.
11. Sensory system
    1. Consists of sensory receptors, neural pathways, and parts of the brain involved in sensory perception.

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2. Sensory system
   1. Consists of sensory receptors, neural pathways, and parts of the brain involved in sensory perception.

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2. Respiratory system
   1. The lungs and the trachea that bring air into the body.
3. 
   

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2. Reproductive system:
   1. The sex organs required for the production of offspring.
3. 
   

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2. Renal system / Urinary system:
   1. The system where the kidneys filter blood.
3. 
   

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1. 
   
2. 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.
3. 
   

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1. 
   
2. Muscular system/Skeletal system:
   1. Enables the body to move using muscles.
   2. Bones supporting the body and its organs.
3.