chyme


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chyme

(kīm), semiliquid substance found in the stomach and resulting from the partial digestion of food by the salivary enzyme amylase, the gastric enzyme pepsin, and hydrochloric acid. Secretion of hydrochloric acid by the stomach makes the chyme strongly acidic. The rhythmic muscular action of the stomach wall (peristalsis) moves the chyme into the duodenum, the first section of the small intestine, where it stimulates the release of secretin, a hormone that increases the flow of pancreatic juice as well as bile and intestinal juices. Chyme also stimulates the release of cholecystokinin, a hormone that primarily increases the flow of bile but also increases the proportion of digestive enzymes in the pancreatic juice.

Chyme

 

the fluid or semifluid contents of the small intestine in animals and man, consisting of gastric digestive products mixed with bile, the secretions of the pancreas and intestinal glands, desquamated epithelium, and microorganisms. Chyme also contains enzymes of the pancreatic juice, such as proteases, α-amylase, and lipase, as well as intestinal enzymes, such as enterokinase, carbohydrases, peptidases, monoglyceride lipase, and phosphatase. Its composition depends on the food ingested and the secretory activity of the digestive system.

In man, about 400 g of chyme per day pass from the small intestine to the large intestine. The motor activity of the intestine agitates the chyme, thus promoting better digestion and absorption of food substances. Specially prepared chyme has therapeutic properties: it is used in certain digestive disorders and metabolic disturbances in agricultural animals.

REFERENCE

Fiziologiia pishchevareniia. Leningrad, 1974. (Rukovodstvo pofisiologii.)

N. M. TIMOFEEVA

chyme

[kīm]
(physiology)
The semifluid, partially digested food mass that is expelled into the duodenum by the stomach.

chyme

the thick fluid mass of partially digested food that leaves the stomach
References in periodicals archive ?
The arrangement of the muscle layers is functionally important, as it relates to its role in mixing chyme during the digestive process as well as to its ability to force the partially digested contents into the small intestine.
The main function of these glands is to produce a mucus rich alkaline secretion in order to protect the duodenum from the acidic content of chyme (which is introduced into the duodenum from the stomach), provide an alkaline condition for intestinal enzymes, lubrication of intestinal walls and for better absorption.
As chyme moves through the colon, it is mixed and exposed to gut bacteria that trigger fermentation of undigested carbohydrates.
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CHYME will be launched in January 2012 and presented to key individuals and healthcare professionals from children and adult services from the Walton Centre, BCUHB, Bangor University, local epilepsy and children's charities.
The "chemistry" of digestion in the midst of this analogy (corn into chyme into chyle into blood), relates to, but also figuratively feeds, the chemistry of knowledge and thought with which the passage (and the process) concludes.
Difficulties in intestinal chyme movement were observed in the most painful areas.
1971, Peristaltic carrying and mixing of Chyme in the small intestine ( An analysis of a mathematical model of peristaltic of the small intestine), J.
High dietary fibre content has been reported to lead to delayed release of chyme from the stomach into the intestines.
ITF consumption causes an increase in intestinal content weight and more specifically in the water content, as these carbohydrates remain in solution in the chyme and contribute to the increase in the osmotic pressure, resulting in increased water flow to the intestinal lumen.
Effects of an inserted endoscope on chyme movement in small intestine.