When you first organize your kosher kitchen, it is wise to label the cabinets on the outside as Dairy [Chalav] and Meat [Basar].. You can use masking tape or colored file dots that you can get from a stationary store (red and blue are popular to be used, red for meat, blue for dairy).
The olfactory epithelium, found within the nasal cavity, contains olfactory receptor cells, which have specialized cilia extensions. The cilia trap odour molecules as they pass across the epithelial surface.
Medical Definition of EPITHELIUM. : a membranous cellular tissue that covers a free surface or lines a tube or cavity of an animal body and serves especially to enclose and protect the other parts of the body, to produce secretions and excretions, and to function in assimilation.