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quote:The vomeronasal organ (VNO) or Jacobson's organ is an auxiliary olfactory sense organ in some tetrapods. In adults, it is located in the vomer bone, between the nose and the mouth. It develops from the nasal (olfactory) placode, at the anterior edge of the neural plate.Its function is somewhat mysterious. The sensory neurons within the vomeronasal organ detect distinct chemical compounds, often but not always large non-volatile molecules. The vomeronasal organ is used in the detection of pheromones in some animals such as mice, although some pheromones are detected by the main olfactory epithelium, and the vomeronasal organ detects other compounds in addition to pheromones. Cats sense nepetalactone from catnip using the vomeronasal organ.Snakes use it to sense smell prey, sticking their tongue out and touching it to the opening to the organ. Elephants transfer chemosensory stimuli to the vomeronasal opening in the roof of their mouths using the "finger" at the tips of their trunks. Some mammals use a distinctive facial movement called flehmen to direct compounds to this organ, while in some other mammals the entire organ contracts or pumps to draw in compounds.Anatomical studies demonstrate that in humans the vomeronasal organ regresses during fetal development, as is the case with some other mammals, including other apes, cetaceans, and some bats. There is no evidence of a neural connection between the organ and the brain in adult humans. Nevertheless, a small pit can be found in the nasal septum of some people, and some researchers have argued that this pit represents a functional vomeronasal organ. Thus, its possible presence in humans remains controversial.
quote:Originally posted by sworhorvathAm I really that repulsive???
quote:Originally posted by sworhorvath Am I really that repulsive???
quote:Originally posted by sworhorvathWhy Thanks- maybe its the stench of desperation. Hehe!I've heard from a mutual friend that he hasn't paid his phone bill and cannot recieve messages. I'm too scared to ask if he got the message- its likely that he didn't recieve it at all.Hmmm?
quote:Originally posted by Karen W.Well did you get her DAN??Karen
quote:Originally posted by MirageThanks hun. But not all dreams come true, mine don't tend to  It's all about trial and error -------------------------Flying Monkey Slayer says:Free the feet
quote:Originally posted by MirageTrue, very true. Well come friday I will know -------------------------Flying Monkey Slayer says:Free the feet
quote:Originally posted by moonfireWe will think of you in a few hours and pray for you...you are most welcome!"Lo" Loretta
quote:Originally posted by MirageThanks hun. But not all dreams come true, mine don't tend to