Bile

(Bile Salts)

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Definition

-  Dark green-yellowish alkaline fluid secreted from hepatobiliary system to aid digestion

 

Clinical Relevance

-  Lipid absorption in small intestine

-  Fat soluble vitamins

-  Gallstones

-  Steatorrhoea

 

Features

-  Produced by liver

-  Stored in gallbladder

 

Composition

-  Water 85%

-  Bile salts 10%

-  Pigments 3%

-  Lipids 1%

-  Inorganic salts 0.7%

-  Cholesterol 0.3%

 

Function

-  Surfactant to emulsify lipids in digestive system: forms micelles

-  Micelle formation assits pacreatic lipase to digest triglycerides

-  Route of extraction of billirubin (RBC degredation product)

-  Assits in stomach acid neutralisation due to alkalinity

-  Bacteriocidal

 

 

 

References

 

en.wikipedia.org/wiki/Bile