The vomeronasal organ (VNO), or Jacobson's organ, is the paired auxiliary olfactory (smell) sense organ located in the soft tissue of the nasal septum, in the nasal cavity just above the roof of the mouth (the hard palate) in various tetrapods. [1]

2001年5月1日 · In humans there has been a long-standing dispute over whether there is a VNO at all in adults. Recent endoscopic and microscopic observations suggest that there is an organ on at least one side in most adults. This review enquires into its function.

The human vomeronasal organ (VNO) is an accessory olfactory organ located on the anteroinferior part of the nasal septum, 1.5-2.5cm from the nostrils. Its main role is pheromone reception and, through its anatomical connections with the central nervous system, especially parts of the hypothalamus, m …

2023年2月9日 · First and foremost, the VNO in the adult human lacks neurons and nerve fibers. Second, humans are devoid of an accessory olfactory bulb that receives information from the vomeronasal receptor cells, and third, the genes coding for vomeronasal receptor proteins and the specific ionic channels involved in the transduction process identified in ...

The VNO is located on both sides of the lower part of the nasal septum. The essential structure therein is the vomeronasal sensory epithelium (VNSE) containing vomeronasal receptor neurones (VRNs) whose axons leave the VNSE, coalesce along the nasal septum to form the vomeronasal nerve entering the cranial cavity, and synapse in a distinct part ...

2021年1月1日 · The human vomeronasal organ (VNO) is an accessory olfactory organ located on the anteroinferior part of the nasal septum, 1.5–2.5 cm from the nostrils. Its main role is pheromone reception and, through its anatomical connections with the central nervous system, especially parts of the hypothalamus, modulation of both social and sexual ...

2011年9月1日 · In tetrapods, the vomeronasal (Jacobson's) organ specializes in detecting pheromones in biological substrates of congeners. This information triggers behavioral changes associated, in the case of certain pheromones, with neuroendocrine correlates.

2021年1月1日 · The human vomeronasal organ (VNO) is an accessory olfactory organ located on the anteroinferior part of the nasal septum, 1.5–2.5 cm from the nostrils.

1998年11月30日 · Recent publications show that the human vomeronasal organ (VNO) develops and grows during gestation, and is present in all adult humans. The human VNO has a unique ultrastructure, with elongated bipolar microvillar cells that stain with several immunomarkers. These cells show physiological propertie …

The human VNO is a discrete structure that should not be confused with the nasopalatine fossa, the septal mucosal pits or VNO openings. Keywords: Human VNO, postnatal development, adult VNO dimensions, VNO homologue