Mucous cells

Mucous cells are specialized secretory epithelial cells that produce and secrete mucus (mucins). They are found in the surface epithelium of the stomach, in salivary glands (as mucous acinar cells), and elsewhere. Their secretions serve to lubricate, protect, and hydrate epithelial surfaces. The mucin granules often stain lightly with H&E, giving the cytoplasm a clear or foamy appearance.