Human body works like a machine, with different systems that make up the body and allow it to run effectively. Like a machine, if one system is not running properly, your whole body will be affected. These systems perform different tasks in the body and encompass different organs.
Humans have five vital organs that are essential for survival. These are the brain, heart, kidneys, liver & lungs.
Our body consists of a number of biological systems that carry out specific functions necessary for everyday living.