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LIVER ANATOMY & FUNCTION

Updated: May 13, 2021

The liver is a multifunctional accessory organ of the gastrointestinal tract. It weighs about 1500 grams which is roughly 3.3 lbs. It is inferior to the diaphragm and located in the upper right quadrant of the abdominal cavity, and it partially extends to the upper left quadrant. The liver has four lobes and performs over 500 various functions.


Some functions include:


  • Cleans the blood

  • Regulates balance of thyroid, adrenal, and sex hormones

  • Produces bile to break down fats

  • Converts proteins and sugars into usable nutrients

  • Generates immune factors and removes bacteria from blood

  • Converts toxins to body waste products to be eliminated

  • Metabolizes pharmaceutical/recreational drugs

  • Eliminates toxins from the bloodstream

  • Stores vitamins and minerals to be released when needed





Two-thirds of the blood supply is through the hepatic portal vein. The remainder is from the hepatic artery.


Few Fun Facts:

  • Bigger than your brain

  • Regenerates itself

  • Makes blood

  • Metabolizes drugs

  • Largest internal organ

  • Vital organ & a gland


One cranial nerve that innervates the liver is the vagus nerve. This nerve is involved in the parasympathetic nervous system.


The liver is essential for life. We cannot live without it. Therefore we should take care of it if we want to live a long, vital, and healthy life.


Roles of the liver include:

  • Metabolic

  • Exocrine

  • Endocrine

  • Detoxification

  • Protein synthesis

  • Biochemical production

  • Nutrient absorption


Interested in learning more? Check out our new program called Better Liver. With summer arriving, now is the perfect time to improve your liver functions.


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