state the function and location of gastric glands
Answers
#Gastric gland, any of the branched tubules in the inner lining of the stomach that secrete gastric juice and protective mucus.
#gastric glands, distinguished from one another by location and type of secretion. The cardiac gastric glands are located at the very beginning of the stomach; the intermediate, or true, gastric glands in the central stomach areas; and the pyloric glands in the terminal stomach portion. Both the cardiac and pyloric glands secrete mucus, which coats the stomach and protects it from self-digestion by helping to dilute acids and enzymes.
#The intermediate gastric glands produce most of the digestive substances secreted by the stomach. These glands are narrow tubules composed of three major cell types: zymogenic, parietal, and mucous neck cells.
# At the base of the gland are the zymogenic (chief) cells, which are thought to produce the enzymes pepsin and rennin. (Pepsin digests proteins, and rennin curdles milk.) Parietal, or oxyntic, cells occur throughout the length of the gland and are responsible for the production of hydrochloric acid, which is necessary to activate the other enzymes. The purpose of mucous neck cells is to secrete mucus.
GASTRIC GLANDS are present in the walls of the stomach and secrete GASTRIC JUICE..The Gastric juice contains three substances-1)Hydrochloric acid,2)Enzyme Pepsin,3)Mucus…….Enzyme Pepsin helps in digestion of proteins and works on in the presence of an Acid i.e.HCL….Hydrochloric acid helps in the functionality of Pepsin and kills any BACTERIA thant may have entered along with the food….M Mucus protects the Inner lining of the Stomach from its own secretion I.e. HCL as HCl is an Acid and causes the erosion of inner lining of Stomach..