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.
There are two pathways for odors to reach the olfactory epithelium. The orthonasal red route is used during sniffing, for example, to identify odors like rose, smoke, or other odorants in the environment. Through the retronasal blue route the flavor of foods can be perceived. These two pathways are referred to as orthonasal and retronasal olfaction [1] ; [2].