Final answer:
The villus in the lining of the small intestine contains enterocytes, which absorb and transport fats from digested food into the lymphatic and circulatory systems.
Step-by-step explanation:
The structure within the lining of the small intestine that contains enterocytes and enteroendocrine cells is known as the villus. The products of food digestion are absorbed by different structures in the villi of the small intestine, specialized for this purpose. One key aspect of these structures is the epithelial cells that facilitate nutrient absorption. The fats from digested food are specifically absorbed by enterocytes in the villi that then transport these fats into the lymphatic and circulatory systems.