Characteristic of protective epithelium is ?
Ans. is 'a' i.e., Regeneration of membraneThe regeneration of epithelium is one of the protective mechnaism of epithelial cells. There are three mechanism for healing.Resolution It is an ideal outcome of healing and occurs in acute infalmmatory responses to minor injuries.Regeneration Replacement of lost parenchymal cells by division of adjacent surviving parenchymal cells (Regeneration) can also restore injured tissue to normal. Whether regeneration occurs depends uponi) Regenerative capacity of the involved cell (i.e., their ability to divide)ii) The no. of surviving ble cellsiii) Presence of connective tissue framework that will provide the base for restoration of normal tissue structure. C.Repair by scar formation A scar is a mass of collagen that is the end result of repair by organization and fibrosis. Repair by scar formation occurs when.i) Resolution fails to occurs in an acute inflammatory responseii) When there is ongoing tissue necrosis in chronic inflammation.When parenchymal cells necrosis cannot be repaired by regeneration.
Regeneration of membrane
Microvilli
Thinness
Pinocytic vesicle