liver
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Introduction
The largest gland of the body. It lies beneath the diaphragm on the right.
Function
The liver functions as a metabolic organ.
- synthesis of plasma proteins
- lipid metabolism
- storage of glycogen, vitamins, & minerals
- elimination of catabolites
- elimination of xenobiotics
As an exocrine gland, the liver secretes bile.
Structure
Normal liver weight: 1-2 kg (1/40 of body weight)
Normal liver span:*
- 6-12 cm right mid-clavicular line
- 4-8 cm mid-sternal line
Arterial supply
* Receives body nutrients from the intestine via portal vein.
⧼aaushi-heading-venous-drainage⧽
Physical examination
* When estimating the size of the liver by percussion:
- a right pleural effusion or consolidated lung may falsely increase the estimate of liver size
- gas in the right colon may produce tympany in the right upper quadrant & falsely decrease the estimate of liversize