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The Human body is the physical part of a human person. In an adult, it consists of a skeleton made up of 206 bones, attached to which are 639 muscles. The human body contains 100 organs and has approximately 5 to 8 litres (10.5 to 16.8 pints) of blood, which circulates around the body through every part, thanks to the heart and a network of veins, arteries and capillaries.
The body consists of many different systems, all of which have different functions in keeping a person alive:
- The Reproductive system (Genitals, Ovaries and Testicles): Parts of the process for creating new life;
- The Digestive system (Stomach, Liver, Intestines): This system turns food and drink into energy and chemicals needed to live, and also deals with the removal of solid waste (Feces) via the Rectum;
- The Immune system (Spleen, Tonsils, Lymph glands): The system for defense and protection of the body;
- The Endocrine system (Pancreas, Thyroid gland): This system deals with production and distribution of Hormones;
To preserve the human body, it is necessary to eat healthy foods and drink plenty of water.
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