The extracellular matrix secreted by epithelial cells, and across which nutrients diffuse, is known as ____.

A) the plasma membrane
B) the basement membrane
C) stratified cells
D) exocrine ducts
E) tight junctions

Basement Membrane

A thin, dense layer of extracellular matrix that underlies the epithelium and separates it from underlying connective tissue.

Extracellular Matrix

A complex network of proteins and carbohydrates surrounding cells within tissues, providing structural and biochemical support to the surrounding cells.

Epithelial Cells

Cells that line the surfaces of the body, including the skin, blood vessels, urinary tract, and organs, serving as a barrier and involved in absorption and secretion.