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Three substances secreted by the stomach are:

1) Hormones. The most important of these is gastrin, which is secreted by the stomach's G cells. Gastrin is an important hormone in digestion, in that it brings about the stimulation of parietal cells to produce gastric juice, which contains the acid HCl, water, and pepsinogen (a precursor to pepsin).

Gastrin is released in response to distention of the stomach, stimulation of the vagus nerve or degranulation of mast cells to give histamine. Gastrin secretion is inhibited by the presence of acid (a form of self-regulative negative feedback) and also the hormones secretin and somatostatin.

2) Acid. The HCl secreted by parietal cells into the lumen of the stomach serves a number of functions. It creates an acidic environment that kills bacteria, denatures protein, hydrolyses the zymogen pepsinogen to its active form, pepsin and provides the optimum pH for pepsin action.

3) Mucus. Mucus is secreted by the gastric gland's mucus cells and, to a lesser extent, mucus neck cells. Mucus is a cloudy, viscous and alkaline substance that forms a thick gel-like coat that adheres to the surface epithelium and protects it from abrasion and the acid content of the stomach.

4) Another important secretion is preoteases, such as pesinogen and rennin.

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14y ago

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Hydrochloric acid is secreted by which of the secretory cells of the stomach?

Hydrochloric acid is secreted by the parietal cells in the stomach lining. These cells are responsible for producing the acidic environment in the stomach that aids in digestion.


Hydrochloric acid is secreted by what cell?

Hydrochloric acid is secreted by the parietal cells in the stomach. They are responsible for producing the acidic environment necessary for digestion and killing bacteria in the stomach.


Where is hydrochloric acid secreted in the digestive system?

Hydrochloric acid is secreted by the parietal cells in the stomach. These cells are located in the gastric glands lining the stomach wall. Hydrochloric acid plays a key role in the digestion of food by creating an acidic environment in the stomach.


What is normal pH of stomach?

The normal pH of the stomach is about 2-3 and is caused by a high concentration of HCl secreted by the parietal cells of the stomach.


Hydrochloric acid and pepsin are secreted by the?

Hydrochloric acid is secreted by the parietal cells of the stomach lining, while pepsin is secreted by the chief cells in the stomach. Together, these substances play a key role in the digestion of proteins by breaking them down into smaller peptides and amino acids.


What cells produce hydrocholoric acid in stomach?

Parietal cells


Pepsinogen is the precursor to the gastric enzyme for protein digestion and is secreted by the parietal cells?

it is secreted by stomach glands as an inactive proenzyme, pepsinogen, which is converted to pepsin by the cleavage of acid-labile linkages in the acidic (low pH) environment of the stomach.


Where do you find HCl in the human body?

Hydrochloric acid (HCl) is found in the stomach, where it aids in the digestion of food by breaking down proteins. It is secreted by special cells in the lining of the stomach called parietal cells.


What cells secrete hydrochloric acid?

Chief cells lining the stomach. (They actually secrete H+ and Cl- ions individually, but it becomes HCl in the solution).


What is it in your body that contains hydrochloric acid?

Hydrochloric acid is produced and secreted by the parietal cells in the lining of the stomach. It is important for the digestion of food and killing bacteria that may be present in the stomach.


Where in the digestive system is hydrochloric acid found?

Stomach is where the hydrochloric acid found


Which kind of cell produces hydrochloric acid in the stomach?

Osteoclast (most likely from my point of view)