to inorganic components include gastric hydrochloric acid.Her concentration determines the level of acidity of gastric juice.The minimum content of hydrochloric acid on an empty stomach, as much as possible - in contact with food in the stomach.
Organic components are substances of protein and non-protein nature.Non-protein nature are urea, uric acid, ammonia, lactic acid, polypeptides, amino acids.Protein same nature have the digestive enzymes of the stomach.
Pepsin A affects the process of assimilation of proteins.Under its influence the proteins are broken down into peptones.This enzyme is produced under the influence of hydrochloric acid.
Gastriksin Feature similar to pepsin Pepsin A. The best of all other enzymes dissolve gelatinase.Rennin, rennet casein milk promotes cleavage in the presence of calcium ions.
gastric enzyme lysozyme gives it antibacterial properties.The enzyme urease decomposes urea with liberated ammonia is neutralized with hydrochloric acid.The enzyme lipase breaks down fats into glycerol and fatty acids.
Also in the gastric juice enters the gastric mucus or mucin released by additional cells of the gastric glands.It is a combination of colloidal solutions of macromolecular biopolymers, the latter are in all tissues and body fluids.It consists of low molecular weight organic and mineral substances, white blood cells, lymphocytes, desquamated epithelium.
gastric mucus contains soluble and insoluble fractions.Insoluble mucin lining the stomach from the inside, it becomes part of the gastric juice.Soluble mucin secretions arise from epithelial cells of the secretory glands of the stomach.
Both factions have a number of important functions: protection, promotion of the formation of some enzymes that help in the assimilation of vitamin B12, binding of certain viruses, stimulate gastric motility.
gastric glands secrete hydrochloric acid of high concentration.It creates optimal pH, causes swelling of the proteins, provides the antibacterial effect.It also helps the process of moving the food from the stomach into the duodenum.
Gastric acid is also involved in the management of pancreatic secretion, stimulates the production of the duodenal mucosa enzyme enterokinase.It participates in the curdling of milk.
- digestion in the stomach
- Enzymes gastric