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vomeronasal organ
vo·mer·o·na·sal organ V5158000 (vō′mə-rō-nā′zəl)n. Either of two olfactory sense organs, found near the vomer in certain amphibians, reptiles, and mammals, that detect pheromones and other chemical compounds. In humans, these organs regress during fetal development. Also called Jacobson's organ.EncyclopediaSeeJacobson's Organvomeronasal organ
vo·mer·o·na·sal or·gan [TA] a sense organ for pheromones in lower animals, usually regresses after the sixth month of gestation in humans; of debatable functional significance in humans when it does exist in vestigal form; located in a small canal, ending in a blind pouch, in the mucous membrane of the nasal septum, beginning just behind and above the incisive canal. Synonym(s): organum vomeronasale [TA], Jacobson organvomeronasal organ (vō′mə-rō-nā′zəl)n. Either of two olfactory sense organs, found near the vomer in certain amphibians, reptiles, and mammals, that detect pheromones and other chemical compounds. In humans, these organs regress during fetal development. Also called Jacobson's organ.Jacobson, Ludwig L., Danish anatomist, 1783-1843. Jacobson anastomosis - a portion of the tympanic plexus.Jacobson canal - a minute canal in the wedge of bone separating the jugular canal and carotid canal. Synonym(s): tympanic canaliculusJacobson cartilage - a narrow strip of cartilage located between the lower edge of the cartilage of the nasal septum and the vomer. Synonym(s): cartilago vomeronasalisJacobson nerve - Synonym(s): tympanic nerveJacobson organ - a fine vestigial horizontal canal ending in a blind pouch in the mucous membrane of the nasal septum. Synonym(s): vomeronasal organJacobson plexus - a plexus on the promontory of the labyrinthine wall of the tympanic cavity, formed by the tympanic nerve, an anastomotic branch of the facial nerve, and sympathetic branches from the internal carotid plexus. Synonym(s): tympanic plexusJacobson reflex - flexion of the fingers elicited by tapping the flexor tendons over the wrist joint or the lower end of the radius.See VNO See VNOThesaurusSeeorgan |