The Liver

The Liver for UPSC IAS
  • The liver is the second largest organ in the human body, after the skin.
  • After the brain, it is also the second most complex organ in the body.
  • In the human body, the liver is located in the upper right area of the abdomen, beneath the rib cage and the lungs.
  • The liver is a solid organ, which is approximately 3–3.5 pounds or 1493.79 grams.
  • Everything we drink or eat, including medicine, passes through the liver.
  • It is impossible to survive without a liver.
  • It is also said that the liver is an organ that can easily be damaged if you don’t take good care of it.
  • It is the only organ, which has the ability to regenerate efficiently.

What are the Functions of the liver?

  • The human liver is involved in 500 different functions.
  • It performs various crucial functions associated with digestion, immunity, metabolism, and the storage of nutrients within the body.
  • The important functions of the liver are:
  1. It produces and excretes bile.
  2. It detoxifies the blood and purifies it.
  3. It also acts as a blood clotting factor.
  4. It produces proteins for blood plasma.
  5. It stores excess glucose in the form of glycogen.
  6. It filters and eliminates toxins from the blood cells.
  7. It carries out the metabolism of carbohydrates, fats and proteins.
  8. It activates enzymes and stores vitamins, minerals and glycogen.
  9. It synthesizes plasma proteins, namely albumin and clotting factors
  10. It is responsible to excrete bilirubin, cholesterol, drugs and hormones.
  • Liver disease does not cause any obvious signs or symptoms until it is fairly advanced and the liver is damaged.
  • At this stage, symptoms may be loss of appetite, weight loss, and jaundice.

Liver diseases

  • Some common types of liver diseases are:
    • Nonalcoholic fatty liver disease
    • Hepatitis C
    • Hepatitis B
    • Cirrhosis of the liver
    • Alcoholic hepatitis
    • Hepatitis A

Latest News

  • 19 April 2023:
    • World Liver Day is observed on 19 April to raise awareness about liver-related diseases.


  1. Indian Express
  2. Wikipedia

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