On Mammary Epithelial Cells?

The mammary epithelium consists of two differentiated cell types organized into two cell layers, an inner layer of luminal epithelial and an outer layer of myoepithelial cells

myoepithelial cells
Each cell consists of a cell body from which 4-8 processes radiate and embrace the secretory unit. Myoepithelial cells have contractile functions. They help in expelling secretions from the lumen of secretory units and facilitate the movement of saliva in salivary ducts.
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in direct contact with the basement membrane (Fig. 1a).

What are epithelial cells and what is their function?

Myoepithelial cells are localized between luminal epithelial cells and the stroma, which ideally positions them to communicate with both compartments. Moreover, recent studies indicate that myoepithelial cells may function as a guardian of tissue integrity in the human breast by maintaining tissue polarity (8,9).

What type of epithelial tissue is found in the breast?

Each breast is made up of 15-25 secretory lobes, embedded in adipose tissue. The mammary gland is like a modified sweat gland. Each of theses lobes is a compound tubular acinar gland. The acini empty into ducts, that are lined by cuboidal, or low columnar epithelial cells, and surrounded by myoepithelial cells.

Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.