The liver Flashcards
What is the liver?
The liver is the biggest gland in the body, it weights (1.5Kg).
Where is the liver located?
It is located above the stomach in the abdomen in the human body
What are the liver functions?
1.Detoxification: remove of the poisonous substances.
2. Deamination: change the excess of amino acids into ammonia.
3. Change the excess of glucose into glycogen.
4. Bile formation.
5. Maintain vitamins such as vitamin(A, D, K and B12).
What is the anatomy of the liver?
The liver is divided into two lobes, the left lobe is smaller than the right one.
What is the liver tissue composed of?
Liver tissue is composed of thousands of hepatic lobules which have hexagonal shape, and each lobule is made up of cuboidal cells called hepatic cells (hepatocytes).
Spaces between hepatocytes called blood sinusoids.
Spaces between hepatic lobules called portal space which contain blood supply of the liver and bile duct.
What are the functions of the liver tissue components?
The function of hepatocytes is mainly is bile formation.
The function of the bile duct is to take bile from the liver {hepatocytes} to the gall bladder for storage.
The function of the common bile duct is to take bile from the gall bladder to the duodenum.
The types of cells found in the bile duct is inactive cuboidal cells.
How does blood supply occur in liver?
The hepatic vein takes deoxygenated blood ( blood without oxygen) from liver to the heart.
The Hepatic artery take oxygenated blood ( blood with oxygen) from heart to the liver.
The hepatic portal vein take blood containing digested food from the small intestine to the liver.
