Why doesn't the stomach digest itself?
A) The stomach wall lacks proteins so enzymes won't attack it.
B) The digestive enzymes in the stomach aren't efficient enough.
C) The stomach lining is too tough to be digested.
D) The stomach wall is protected by large amounts of mucus.
E) The stomach is protected by HCl.

Question

Quizplus · Accepted Answer

The stomach wall is coated with a thick layer of mucus, which serves as a protective barrier against the harsh digestive acids and enzymes present in the stomach. This mucus prevents the stomach lining from being digested by these substances.

Why Doesn't the Stomach Digest Itself