NEET PG DENTAL EXAM

Detailed explanation-1: -The bottom edge of the epithelial tissue next to the basement membrane is the basal surface. In contrast, the edge of the epithelial tissue facing the lumen or the external environment is called the apical surface.

Detailed explanation-2: -In many epithelia, the apical surface is specialized. For instance, in the small intestine, the apical plasma membrane is folded into microvilli (see below) to increase the surface area for absorption of nutrients. Every epithelium has a basement membrane, that binds the epithelium to the underlying connective tissue.

Detailed explanation-3: -Answer and Explanation: c) Epithelial tissue consists of epithelial cells which have a basic structure consisting of an apical surface which are exposed to the “external” environment, and a basement membrane which serve as a scaffolding of sorts to attach to their lined tissue or organ.