Question

What is the role of mucus, hydrochloric acid and bile in detail?

Answer 1

Mucus:
Mucus is secreted by mucous cells present in the stomach.Its main function is to protect the inner lining of the stomach from the acidic nature of HCl.Mucus also line the trachea and acts as an additional filter of the air



Hydrochloric Acid:
It is secreted by oxyntic cells or parietal cells in the stomach.Its stimulates pespin which otherwise stays in its inactive form(pepsinogen).It disinfects the food by killing the germs in the food.


Bile:
Bile is secreted by liver;the largest gland in the body.It changes the acidic nature of the chyme into alkaline nature.This food mass is called chyle.It is stored in Gall Bladder.