We know that digestion is an important process, as it is from it that food is broken down into smaller particles that will be used by our body. The digestion process takes place along the organs of the digestive system: mouth, pharynx, esophagus, stomach, small intestine, large intestine and anus. In addition to these organs, some glands participate directly in the process, they are called adnexal glands, which are: salivary glands, liver and pancreas.
During digestion, food undergoes transformations and is mixed with different substances. Chyme and chyme are products of these changes that have taken place in the food since the beginning of its digestion.
- The chyme is formed in the stomach
When the bolus reaches the stomach, it will be acted on by gastric juice, a substance rich in hydrochloric acid. This acid is important as it maintains the pH around 2, making it ideal for converting pepsinogen into pepsin, an enzyme found in gastric juice that works by breaking down protein molecules into peptides, as well as destroying microorganisms pathogens. A small amount of lipase is also found in gastric juice, as well as renin in young individuals. After the action of all these substances, the food bolus transforms into a semi-liquid, white and acidic mass:
the chyme.- The chyle is formed in the small intestine
The chyme will reach the small intestine, where digestion will continue. Much of this process takes place in the initial portion of the intestine, the duodenum. The chyme is mixed with enteric juice, a liquid that contains enterokinase (transforms trypsinogen in trypsin), peptidases (complete protein digestion) and carbohydrases (digestion of disaccharides). In addition, the chyme undergoes the action of substances produced by two adjacent glands: pancreatic juice and bile. Pancreatic juice, produced by the pancreas, is a substance with an alkaline pH that has enzymes such as trypsin (digests proteins), lipase (breaks down lipids) and amylase (breaks starch). Bile, which is produced by the liver and stored in the gallbladder, acts to break down fat. After all the transformations suffered in the intestine, the chyme is called chyle, a white substance.
By Ma. Vanessa dos Santos
Source: Brazil School - https://brasilescola.uol.com.br/o-que-e/biologia/o-que-e-quimo-quilo.htm
