vomeronasal organ

(redirected from Vomeronasal organ of Jacobson)
Also found in: Medical.

vo·mer·o·na·sal 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.
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The vomeronasal organ of Jacobson in the human embryo and fetus.