Many of these cells form tissue, therefore tissue with organ, organ with organ system. Without the combination of these cells and tissues, the body's functions would not exist. All these functions make the liver a vital organ, without which the body's tissues would quickly die due to lack of energy and nutrients (InnerBody, 2009). The advantage of having the combination of different tissues and unique cells is that they all play their own active role. A perfect example would be that our body cannot use the medicines we take, the medicines that our liver converts into a form accepted by our body. Without these functions of the liver, medicine would be useless. The liver is one of the most important organs in the body and plays an active role in digestion, metabolism, detoxification, storage, production and immunity of the human body. It is essential for survival. Unfortunately, there are more people on the donor list than are available