Largest organ which is about the size of a football in human body

The liver is the largest organ inside the body. In an adult, it is about the size of a football
and weighs close to three pounds. It is located behind the ribs in the upper right-hand
portion of the abdomen. Shaped like a triangle, the liver is dark reddish-brown and
consists of two main lobes. There are over 300 billion specialized cells in the liver that
are connected by a well organized system of bile ducts and blood vessels called the
biliary system.

The liver is such an important organ that we can survive only one or two days if it shuts down—if the liver
fails, your body will fail, too. Fortunately, the liver can function even when up to 75% of it is diseased or
removed. This is because it has the amazing ability to create new liver tissue (i.e. it can regenerate itself)
from healthy liver cells that still exist.

If your body was an automobile, your liver would be considered the
engine. It does hundreds of vital things to make sure everything runs
smoothly. Some of the most important functions of the liver include:
- Stores vitamins, sugar and iron to help give your body energy.
- Controls the production and removal of cholesterol.
- Clears your blood of waste products, drugs, and other poisonous
substances.
- Makes clotting factors to stop excessive bleeding after cuts or
injuries.
- Produces immune factors and removes bacteria from the bloodstream
 to combat infection.
- Releases a substance called “bile” to help digest food and absorb important nutrients.