HUMAN NUTRITION

NUTRITION

DIGESTIVE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Hydrochloric acid is a caustic chemical that can burn your skin- and yet it exists in your stomach. How can this be?
A
Your small intestines absorb all the hydrochloric acid
B
The food in your stomach absorbs all the acid
C
Your stomach lining protects you against burns
D
The hydrochloric acid in your stomach is different from the hydrochloric acid you would find in a chemistry lab
Explanation: 

Detailed explanation-1: -Cells in your stomach called parietal cells produce this acid and secrete it into your stomach to help break down food. Even though hydrochloric acid can cause severe burns to your skin, your stomach is protected by a protective mucus layer produced by the cells that line your stomach.

Detailed explanation-2: -Hydrochloric Acid Production HCl is produced by the parietal cells of the stomach. To begin with, water (H2O) and carbon dioxide (CO2) combine within the parietal cell cytoplasm to produce carbonic acid (H2CO3), which is catalysed by carbonic anhydrase.

Detailed explanation-3: -If the chemical is on the skin or in the eyes, flush with lots of water for at least 15 minutes. If the chemical was swallowed, immediately give the person water or milk, unless instructed otherwise by a health care provider.

Detailed explanation-4: -If this chemical contacts the skin, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly.

Detailed explanation-5: -The stomach produces hydrochloric acid to digest food. The stomach has a mucous lining that protects it from hydrochloric acid, but the esophagus does not. So, when food and stomach acid regurgitate back into the esophagus, a burning feeling is felt near the heart.

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