The main body organs
- The body needs all organs in order to function properly.
- The main systems of the body are:
- The digestive system which contains the stomach and intestine, and extract nutrients and resources from ingested food;
- The nervous system containing the brain and using the nerves to transfer information transfer between different body parts and the brain, allowing for example to sense and move;
- The respiratory system containing the lungs, which extract oxygen from the air;
- The cardiovascular system containing the heart and blood vessel allows the transport of elements such as nutrients, hormones and oxygen all over the body;
- The reproductive system containing the sex organs like the ovaries and testes and is used for reproduction