Dandelion is an herb. People use the above ground parts and root to make medicine. Dandelion is used for many conditions, but so far, there isnât enough scientific evidence to determine whether or not it is effective for any of them.
The olfactory epithelium is a layer of odor-sensitive cells located inside the depths of the nose. These cells react to odors as they enter the nose, sending signals to the olfactory bulb.
The Olfactory Membrane. The olfactory membrane is a thick yellow-brown structure, about one inch square, located in the upper part of each nasal cavity. It consists of about one hundred million smell receptor cells, which are surrounded by supporting cells.The smell receptor cells have an olfactory vesicle bearing cilia, which project into the mucus that covers the smell membrane.Chemicals in the air react with the cilia and stimulate the receptor cells.he smell receptor cells have an olfactory vesicle bearing cilia, which project into the mucus that covers the smell membrane. Chemicals in the air react with the cilia and stimulate the receptor cells.