Through which lymphatic structure are chylomicrons transported away from the intestinal mucosa?

Through which lymphatic structure are chylomicrons transported away from the intestinal mucosa?

• A. Portal vein
• B. Lacteals
• C. Thoracic duct
• D. Liver sinusoids

Answer: (B)

Chylomicrons are formed in enterocytes after fat digestion and are too large to enter blood capillaries. They are taken up by the tiny lymphatic vessels in the intestinal villi, known as lacteals. From these lacteals, the chylomicron-containing lymph travels through the lymphatic system and ultimately reaches the thoracic duct, which drains into the bloodstream. That’s why chylomicrons are transported away from the intestinal mucosa via lacteals. The portal vein carries nutrients directly to the liver and is not the route for chylomicrons, the thoracic duct comes later in the drainage pathway, and liver sinusoids are part of the liver’s internal blood vessels, not the initial transport route from the mucosa.

Chylomicrons are formed in enterocytes after fat digestion and are too large to enter blood capillaries. They are taken up by the tiny lymphatic vessels in the intestinal villi, known as lacteals. From these lacteals, the chylomicron-containing lymph travels through the lymphatic system and ultimately reaches the thoracic duct, which drains into the bloodstream. That’s why chylomicrons are transported away from the intestinal mucosa via lacteals. The portal vein carries nutrients directly to the liver and is not the route for chylomicrons, the thoracic duct comes later in the drainage pathway, and liver sinusoids are part of the liver’s internal blood vessels, not the initial transport route from the mucosa.