Columnar epithelial cells
Complete the following staterients: 1. Olfactory, or smell receptors are neurons surrounded by columnar epithelial cells.2. The distal ends of the olfactory neurons are covered with hairlike
3. Before gaseous substances can stimulate the offactory receptorr, they must be dissolved in that surrounds the cilia.4. The axons of olfactory receptors pass through small openings in the of the ethmoid bonc.
2 R 5. Oifietory bulbs lie on either ade of the of the ethmoid bone,6. The nensory impulses pass from the olfactory bulbs through the to the interpreting centers of the brain.]
7. The olfactory interpreting centers are located deep within the tempotal lobes and at the base of the lobes of the cerebrum. 2 .
8. Olfactory sensations usually fade rapidly as a result of 9. Olfactory receptor neurons are the only parts of the nervous system that come in contact with the directly. 11 10. A chemical would be considered if a person lacked a particular receptor site on the cilia of the olfictory neurons: 1 .

