mucosal epithelium

Mucosal epithelium is a thin layer of cells that lines the surfaces inside your body that come into contact with the outside environment, such as your mouth, nose, digestive tract, and respiratory pathways. This tissue acts as a protective barrier, preventing harmful substances like germs and irritants from entering your body, while also allowing the absorption of essential nutrients and gases. The mucosal epithelium is specialized and can produce mucus, a thick fluid that traps debris and microbes, helping keep these surfaces moist and defend against infection.