39. Digestive System
Digestion
Multiple Choice
Multiple ChoiceHow is the stomach lining protected from the strongly acidic pH of its contents?
A
It releases a hormone called gastrin, which stops gastric juice secretion.
B
Bile neutralizes the acid soon after it enters the stomach.
C
Parietal cells secrete a protective buffer to neutralize hydrochloric acid.
D
The acid is neutralized quickly when it combines with pepsinogen to make pepsin.
E
Mucous cells secrete a protective lubricant into the stomach.
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