Evolution of Vomeronasal Organs in Vertebrates.

  title={Evolution of Vomeronasal Organs in Vertebrates.},
  author={Gunnar Bertmar},
  journal={Evolution; international journal of organic evolution},
  volume={35 2},
The vomeronasal (VN) (Jacobson's) organs are paired chemosensory organs located in the vertebrate nose. They generally are formed only in tetrapods (Negus, 1958). Accessory olfactory bulbs and nerves that may innervate rudimentary VN organs have been described in the African lungfish Protopterus (Rudebeck, 1944) and the paddle fish Polyodon (Story, 1964). True VN organs are not normally formed in recent fishes, and in birds, aquatic reptiles, aquatic mammals, and higher primates (including man… CONTINUE READING