What are two substances contained in gastric juice?
Gastric juice contains three substances: hydrochloric acid, enzyme pepsin and mucus. Their functions are: Hydrochloric acid in the stomach is used to make the medium acidic to facilitate the action of the enzyme pepsin and to kill germs if any. Enzyme pepsin digests proteins to convert them into peptones.
What is the function of gastric juice Class 7?
The Biological Function of Gastric Juice. Gastric juice is a unique combination of hydrochloric acid (HCl), lipase, and pepsin. Its main function is to inactivate swallowed microorganisms, thereby inhibiting infectious agents from reaching the intestine.
What are the secretions of the stomach?
The stomach secretes water, electrolytes, hydrochloric acid, and glycoproteins, including mucin, intrinsic factor, and enzymes (Fig. 24.3). Gastric motility and secretion are regulated by neural and humoral mechanisms.
What causes gastric cardia?
The etiological factors involved in the development of both cardia cancers and EACs are associated with high animal fat intake, which causes severe obesity. Central obesity plays roles in cardiac-type mucosa lengthening and partial hiatus hernia development.
What is gastric body inflammation?
Gastritis is an inflammation, irritation, or erosion of the lining of the stomach. It can occur suddenly (acute) or gradually (chronic).
What happens in the cardia of the stomach?
The cardia (or cardiac region) is the point where the esophagus connects to the stomach and through which food passes into the stomach. Located inferior to the diaphragm, above and to the left of the cardia, is the dome-shaped fundus. Below the fundus is the body, the main part of the stomach.
What task is a major function of the stomach?
The stomach has 3 main functions: temporary storage for food, which passes from the esophagus to the stomach where it is held for 2 hours or longer. mixing and breakdown of food by contraction and relaxation of the muscle layers in the stomach. digestion of food.
Where is the stomach lining located?
It’s between the end of the food pipe (esophagus) and the start of the first part of the small bowel (duodenum). The stomach is much like a bag with a lining.
How thick is the stomach lining?
Gastric wall thickness on the average measured 15.933 +/- 4.471 mm in the neoplastic patients and 5.107 +/- 1.100 mm in the normal subjects.
Is the pylorus part of the stomach?
The part of the stomach that connects to the duodenum (first part of the small intestine). The pylorus is a valve that opens and closes during digestion.