11. The cartilage lies below, but is not connected to, the rudimentary vomeronasal organ of Jacobson. 12. The second, located under the nasal cavity, are the Vomeronasal organs , also called Jacobson's organs. 13. The vomeronasal organ of birds is either under-developed or altogether absent, depending on the species. 14. The nose has another sensory structure, called the vomeronasal organ , which is specialized for detecting pheromones. 15. These pheromones are detected by the vomeronasal organ in the septum of the female s nose. 16. Dulac's findings are based on tests with a mouse breed whose vomeronasal organ had been genetically inactivated. 17. Naphthalene interferes with the vomeronasal organ of snakes, thereby disrupting their olfactory system in a reversible manner. 18. Scientists have long wondered whether human behavior, too, is influenced by pheromones, because people possess a vomeronasal organ . 19. They smell by using their forked tongues to collect airborne particles, then passing them to the vomeronasal organ . 20. The vomeronasal organ is located at the back of the septum and has a role in pheromone detection.
