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.
1 The olfactory region is located at the apex of the nasal cavity. 2  It is lined by olfactory cells with olfactory receptors. 3  The respiratory region is the largest, and is lined by ciliated psudeostratified epithelium. 4  Within the epithelium are interspersed mucus-secreting goblet cells.t can be generally divided into three regions; the vestibule, the respiratory region, and the olfactory region: 1  The vestibule refers to the area surrounding the external opening to the nasal cavity. 2  The olfactory region is located at the apex of the nasal cavity. 3  It is lined by olfactory cells with olfactory receptors.