Final answer:
Bile salts assist cholesterol in moving from the intestinal lumen to the villi for absorption. They form micelles and then chylomicrons for transport.
Step-by-step explanation:
The substance that assists cholesterol in moving from the intestinal lumen to the villi for absorption is bile salts. Bile salts are produced by the liver and stored in the gallbladder, and they help emulsify fats in the small intestine. These bile salts form micelles, which are small droplets that encapsulate the cholesterol, making it easier for it to be absorbed by the cells in the villi. Once absorbed, cholesterol is packaged into chylomicrons, which transport it through the lymphatic system and then into the bloodstream.
Learn more about Cholesterol absorption