FuzzyBot: Importing a new version from external source

2024-02-25T02:41:03Z

Importing a new version from external source

New page

In the [[intestine]], following the secretion of [[lipase]]s and [[bile]], triglycerides are split into monoacylglycerol and free fatty acids in a process called [[lipolysis]]. They are subsequently moved to absorptive [[enterocyte]] cells lining the intestines. The triglycerides are rebuilt in the enterocytes from their fragments and packaged together with [[cholesterol]] and proteins to form [[chylomicron]]s. These are excreted from the cells and collected by the lymph system and transported to the large vessels near the heart before being mixed into the blood. Various tissues can capture the chylomicrons, releasing the triglycerides to be used as a source of energy. Liver cells can synthesize and store triglycerides. When the body requires [[fatty acid]]s as an energy source, the hormone [[glucagon]] signals the breakdown of the triglycerides by [[hormone-sensitive lipase]] to release free fatty acids. As the [[brain]] cannot utilize fatty acids as an energy source (unless converted to a [[ketone]]), the [[glycerol]] component of triglycerides can be converted into [[glucose]], via [[gluconeogenesis]] by conversion into [[dihydroxyacetone phosphate]] and then into [[glyceraldehyde 3-phosphate]], for brain fuel when it is broken down. Fat cells may also be broken down for that reason if the brain's needs ever outweigh the body's.

Translations:Fat/14/en - Revision history

FuzzyBot: Importing a new version from external source