Final answer:
Chylomicrons are the particles that transport most of the fat from the intestines into the lymph system after a meal and eventually into the blood.
Step-by-step explanation:
After a meal, most of the fat that travels from the intestines into the lymph system and eventually into the blood is in the form of particles known as chylomicrons. These structures help to transport fats and cholesterol through the lymphatic and circulatory system. Once in the bloodstream, chylomicrons can deliver their lipid contents to various tissues throughout the body, including the liver and adipose tissue, where they are either metabolized or stored. The large size of chylomicrons does not allow them to pass directly into the blood capillaries; instead, they are absorbed by lacteals and transported via the lymph system.