Protection in the stomach

Question 1

Parietal cells will not release HCL immediately as that would damage the cell

Answer 1

Instead parietal cells will first release hydrogen into the stomach via a proton pump

Question 2

Parietal cells will then release Cl into the stomach

Answer 2

This forms Hydrochloric acid

Question 3

HCl acid and pepsin (that is released by chief cells) can potentially cause damage to the lining of the wall

Answer 3

This damage is strictly prevented by the mucoid wall produced by the goblet cells of the stomach

Question 4

Pepsin which breaks down proteins can even damage the chief cells as it is being released

Answer 4

Which is why it is released as pepsinogen not pepsin