The smell receptors are located at the base of each |cilia| located in the |mucous membrane| at the top of the |nasal cavity|. There are about 50 million |nerve fibers| leaving the olfactory mucosa (smell membranes) on each side of the |nose|. These link with a further 50,000 |nerve fibers| which carry messages to the frontal |lobes| of the |brain|.
