MEDICAL
RECTUM AND ANUS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What protects the stomach lining from stomach acid?
|
|
fat
|
|
|
mucus
|
|
|
tissue
|
|
|
none of the above
|
Explanation:
Detailed explanation-1: -In the stomach several mucosal defence mechanisms protect the stomach against hydrochloric acid and noxious agents. The pre-epithelial protection is made up by the mucus-bicarbonate barrier. Mucus and bicarbonate, secreted by mucus cells, create a pH gradient maintaining the epithelial cell surface at near neutral pH.
There is 1 question to complete.