Answer
Intestinal villi are fingerlike projections of the mucosa of the small intestine. Within each villus is a capillary -venous network as well as lymphatic vessels.
Digested food substances enter the blood through capillaries, and enter into the lymph by way of lacteal lymph vessels
Work Step by Step
Digested food has to get into the blood in order to nourish cells. Simple, absorbable forms of these
nutrients include monosaccharides, single amino acids, dipeptides, tripeptides, fatty acids, glycerol, monoglycerides and triglycerides. The end products of carbohydrate and protein digestion enter the blood by way of capillaries; the end product of fat digestion enter lymph through lacteal (lymph) vessels. This passage of digested nutrient substances into the blood and lymph is the process of absorption. It is accomplished by several physiological processes including, diffusion, facilitated diffusion, osmosis, and active transport.
