Final answer:
Triglycerides are initially transported as chylomicrons through the lymphatic system, then to the bloodstream where they are broken down, allowing for uptake by tissues or storage in adipose tissue.
Step-by-step explanation:
The triglycerides are transported from the tissues to their final destination via the lymphatic system. After digestion, triglycerides are broken down into free fatty acids and monoglycerides, then re-esterified into triglycerides within the intestinal cells. These triglycerides, along with cholesterol, are then packaged into chylomicrons, which are lipid-protein complexes that enter the lacteals of the lymphatic system.
The chylomicrons travel through the lymphatic vessels and enter the circulatory system via the thoracic duct. In the bloodstream, lipoprotein lipase acts on the chylomicrons, releasing free fatty acids that can be taken up by tissues for energy or stored in adipose tissue. The liver further processes the remnants into other lipoproteins for cholesterol transport.