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 Underneath the mucus, in the olfactory epithelium, specialized receptor cells called olfactory receptor neurons detect the odor. 2  These neurons are capable of detecting thousands of different odors. 3  The olfactory receptor neurons transmit the information to the olfactory bulbs, which are located at the back of the nose. Underneath the mucus, in the olfactory epithelium, specialized receptor cells called olfactory receptor neurons detect the odor. 2  These neurons are capable of detecting thousands of different odors. 3  The olfactory receptor neurons transmit the information to the olfactory bulbs, which are located at the back of the nose.