chylomicron /chy·lo·mi·cron/ (-mi´kron) a class of lipoproteins that transport exogenous (dietary) cholesterol and triglycerides after meals from the small intestine to tissues for degradation to chylomicron remnants.
chylomicron
chy·lo·mi·cron (k  l -m kr n)n. One of the microscopic particles of fat occurring in chyle and in the blood, especially after a meal high in fat. |
chylomicron
[kī′lōmī′kron]
Etymology: Gk, chylos + mikros, small
minute lipoproteins measuring less than 0.5 μm in diameter. Chylomicrons consist of about 90 triglycerides with small amounts of cholesterol, phospholipids, fat-soluble vitamins, and protein. They are synthesized in the GI tract and carry dietary fat from the intestinal mucosa via the thoracic lymphatic duct into the plasma and ultimately to the liver and tissues. The remnant chylomicron particles are removed by the liver.
chylomicron
a stable droplet containing principally triglyceride fat, but also cholesterol, phospholipids and protein; found in intestinal lymphatics (lacteals) and blood during and after meals.
chylomicron test
in chilled serum, chylomicrons rise to form a creamy top layer and the serum clears; very low-density lipoproteins remain dispersed and the serum is turbid. Called also the refrigeration test.
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