Ever notice the tiny mirror attached to your car's side mirror? We explain its purpose, how it works, and why it matters for ...

Epithelial tissue forms the outermost protective barrier of tissues and organs and is therefore prone to wounds and injuries.

The body's cells change their shape to close gaps such as wounds – with part of the cell flexing depending on the curve of ...

When a wound on the skin creates a gap, the epithelial cells of the skin, surrounding the wound, move in a concerted fashion to close this gap. The boundaries of these gaps can have different ...