Epithelium is Connected to Underlying Connective Tissue By

Question

Epithelium is connected to underlying connective tissue by
A) keratin.
B) interfacial canals.
C) a basement membrane.
D) a reticular lamina.
E) proteoglycan.

Accepted Answer

Epithelium is connected to the underlying connective tissue by a basement membrane, which is a specialized extracellular matrix composed of various proteins and proteoglycans. The basement membrane provides structural support to the epithelium and helps regulate its functions. Keratin is a protein found in certain types of epithelial tissues, but it is not involved in connecting epithelium to connective tissue. Interfacial canals, reticular lamina, and proteoglycan are not structures involved in the connection of epithelium to connective tissue.