NEET PG DENTAL EXAM

Detailed explanation-1: -The lining of the small intestinal mucosa is very highly specialized for maximizing digestion and absorption of nutrients. The lining is highly folded to form microscopic finger-like projections called villi which increase the surface area to help with absorption.

Detailed explanation-2: -Each villus has a network of capillaries and fine lymphatic vessels called lacteals close to its surface. The epithelial cells of the villi transport nutrients from the lumen of the intestine into these capillaries ( amino acids and carbohydrates) and lacteals (lipids).

Detailed explanation-3: -Villi are small finger-like projections seen in the walls of the intestine. These increase the surface area of absorption of nutrients to a great extent within the small intestine. Villi are covered with a single layer of cells. They also contain blood capillaries and lacteals, the lymph capillaries.

Detailed explanation-4: -Villi are small intestine vascular projections that project into the intestinal cavity. Each villus has numerous microvilli protruding from its epithelial surface. Villi are specialized for absorption and have extremely thin walls that are only one cell thick.