Folia Morphol (Warsz). Feb;69(1) The myoepithelial cell: its role in normal mammary glands and breast cancer. Sopel M(1). Author information.
The human breast epithelium is a branching ductal system composed of an inner layer of polarized luminal epithelial cells and an outer layer of myoepithelial.
Myoepithelial cells form a semi-continuous protective sheet separating the human breast epithelium and the surrounding stroma.