NEET BIOLOGY

HUMAN PHYSIOLOGY

DIGESTION AND ABSORPTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Hydrochloric acid is secreted in the ____ .
A
oesophagus
B
stomach
C
large intestine
D
small intestine
Explanation: 

Detailed explanation-1: -It is secreted by the oxyntic cells of the gastric gland in the stomach. Gastric juice contains mucous, hydrochloric acid and certain enzymes such as pepsin.

Detailed explanation-2: -Often simplistically described as hydrochloric acid, these species are produced by parietal cells in the gastric glands in the stomach. The secretion is a complex and relatively energetically expensive process.

Detailed explanation-3: -Parietal cells in the mucosa, the inner cell layer of our digestive tract, secrete hydrochloric acid (HCl) into the stomach’s lumen, or cavity.

Detailed explanation-4: -Acid secretion is initiated by food: the thought, smell, or taste of food effects vagal stimulation of the gastrin-secreting G cells located in the distal one third (antrum) of the stomach. The arrival of protein to the stomach further stimulates gastrin output.

There is 1 question to complete.