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Updated: May 4, 2025
So in the mesenteric veins of an animal we do not find either chyme or chyle and blood, blended together or distinct, but only blood, the same in colour, consistency, and other sensible properties, as it appears in the veins generally.
The whole evening, ever since you left the camp-fire, she has been talking to me on the subject of mental assimilation that is, the treatment of our ideas and thoughts as if they were articles of food intellectual soda biscuit, or plum pudding, for instance in order to find out whether our minds can digest these things and produce from them the mental chyme and chyle necessary to our intellectual development.
Laennec, Merat, and many other writers have mentioned death caused by the entrance of vomited materials into the air-passages. Parrot has observed a child who died by the penetration of chyme into the air-passages. The bronchial mucous and underlying membrane were already in a process of digestion. Behrend, Piegu, and others cite analogous instances.
Whereas nothing is better known to the anatomist and physiologist, than that this the formation of chyme in the stomach constitutes only a very small part of the digestive process. The chyme must pass into the duodenum and other portions of intestine beyond the stomach, and be retained there for some time, before it will form perfect chyle.
Meantime, not to leave you longer in suspense, I may say that the separation between the gold and the refuse in the chyme takes place as soon as the latter has received the two liquids furnished by the liver and the pancreas. If you ask in what manner the division is accomplished, I confess, to my shame, that I am not able to explain it!
Food leaving the small intestine is called chyme, a semi-liquid mixture of fiber, undigested bits, indigestible bits, and the remains of digestive enzymes. Chyme is propelled through the large intestine by muscular contractions.
This motion continues until the contents of the stomach are converted into chyme, and conveyed into the first intestine, where they undergo another important change. CHYLIFICATION. As fast as chyme is formed, it is expelled by the contractile power of the stomach into the duodenum, or first intestine. It there meets with the bile from the liver, and with the pancreatic juice.
The sensation of hunger ceases long before digestion takes place, or the chyme is converted into chyle. It ceases either by a nervous and tonic impression exerted by the aliments on the coats of the stomach; or, because the digestive apparatus is filled with substances that excite the mucous membranes to an abundant secretion of the gastric juice.
In B and C there is no change. Even after long exposure to 100 degrees Fahrenheit there is no change in B and C. After a variable time, from one to four hours, the contents of the stomach, which are now called chyme, begin to move on in successive portions into the next part of the intestinal canal.
The chyme once launched into this moving tube, is in no danger of remaining stationary there; the fear is, of its passing on too quickly, as you will soon see. But this danger has been provided against.
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