The ________ of an epithelial layer is exposed to either the outside of the body or internally to an open space.
A) basement membrane
B) apical surface
C) lumen
D) extracellular matrix

Question

Quizplus · Accepted Answer

The apical surface of an epithelial layer is the side that faces either the outside of the body or an internal open space, distinguishing it from the basal surface that attaches to the basement membrane.

The ________ of an Epithelial Layer Is Exposed to Either