Explain the importance of haemoglobin villi in human beings
Answers
Haemoglobin present in red blood cell. It carry oxygen with it in the form of oxymoglobin. Haemoglobin supply oxygen to all parts of the body.
For absorption to occur, the nutrient must come into contact with the epithelial cells lining the small intestine. If the lining of the small intestine were just flat, many nutrients would flow right through to the large intestine and get excreted. The surface of the small intestine is not flat, however, but consists of circular folds known as mucosal folds. In addition, tiny finger-like projections known as villi line the walls of the small intestine. Microvilli, hair-like membranous projections, cover the villi. These features increase the surface area of the small intestine from approximately 1/2 square meter to 250 square meters, which greatly increases the amount of nutrients you can absorb.
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