A Basal Lamina

Question

A basal lamina
A)is a thin layer of connective-tissue cells and matrix underlying an epithelium.
B)is a thin layer of extracellular matrix underlying an epithelium.
C)is attached to the apical surface of an epithelium.
D)separates epithelial cells from each other.

Accepted Answer

A basal lamina is a thin layer of extracellular matrix consisting primarily of glycoproteins and collagen fibers that underlies and supports epithelial cells. It separates the epithelial cells from underlying connective tissue and plays a critical role in providing structural support, cell adhesion, and regulating cell behavior.