Chylomicrons are lipoprotein particles formed in the small intestine that transport dietary lipids through the lymphatic system into the bloodstream. They play a crucial role in lipid digestion and absorption.
5 Must Know Facts For Your Next Test
Chylomicrons are composed primarily of triglycerides, with a smaller amount of cholesterol, phospholipids, and proteins.
They are synthesized in the enterocytes (intestinal cells) after the absorption of dietary fats.
Chylomicrons enter the lymphatic system via lacteals before reaching the bloodstream.
Apolipoproteins on chylomicrons help to stabilize these particles and facilitate lipid transport.
Once in the bloodstream, enzymes like lipoprotein lipase break down chylomicrons, releasing fatty acids for energy or storage.