GENERAL HISTOLOGY

Detailed explanation-1: -Microvilli on the surface of epithelial cells such as those lining the intestine increase the cell’s surface area and thus facilitate the absorption of ingested food and water molecules.

Detailed explanation-2: -Microvilli are small, slender, fingerlike projections of the apical cell surface formed by tube-like evaginations of the apical plasma membrane, with a core of cytoplasm containing microfilaments of actin. Microvilli vary in length and number ad provide an increase in surface area.

Detailed explanation-3: -Microvilli are the finger-like protrusions of the inner wall of the intestine that increase the surface area of the of the intestinal membrane. This increased surface area helps in more absorption of digested food, ions and other nutrients.

Detailed explanation-4: -Microvilli, found in tightly packed arrays on the apical surfaces of polarized epithelial cells, increase the surface area of the cell exposed to the lumen to enhance absorption and secretion.

Detailed explanation-5: -SIMPLE COLUMNAR EPITHELIUM: The surface of each villus is covered with simple columnar epithelium . The free surface of these cells has very tiny projections called microvilli, which are specialized for absorption (absorptive cells).