Absorption from the small intestine | Fundamentals of Biology
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XSIQ * * Biology - Absorption from the small intestine Absorption from the small intestine The small intestine has structures called villi. In these villi are lymph vessels and blood vessels. Lipids pass into the lymph system monosaccharides and proteins pass into the blood vessels. Chemical digestion has been completed in the small intestine. For humans to gain benefit from this, the useful substances that have been released from the food must now be absorbed across the intestinal wall into the blood and lymphatic capillaries. Monosaccharides [1] (e.g. glucose) and amino acids pass into the blood capillaries while fatty acids and glycerol are absorbed into the lymph capillaries (lacteals). The products of lipid digestion pass along the lymphatic system and eventually are deposited into the blood. Once in the blood, the products of digestion are transported to cells around the body where they may form new substances. Links: ------ [1] http://alison.com/#View Comments and Reviews >>
