Jacobsonian Organ

Yakobson organ

Jacobson's organ (lat. Organon vomeronasale) is a vomeronasal organ, a paired chemoreceptor olfactory organ in many terrestrial vertebrates, including amphibians, reptiles and mammals.

The Jacobson organ was first described by the Danish anatomist Ludwig Jacobson in 1813, which is why it is named after him.

The organ is a tubular structure filled with receptor epithelium. In most mammals, the Jacobsonian organ is located in the nasal cavity between the nasal and oral cavities. In rodents and carnivores it opens into the oral cavity.

The Jacobson organ plays an important role in the perception of chemical signals associated with social behavior and reproduction. It is capable of capturing pheromones and other volatile chemicals. Information from the Jacobson's organ enters special areas of the brain that regulate sexual and aggressive behavior.

Thus, the Jacobson organ, named after the Danish anatomist Ludwig Jacobson, plays an important role in chemical communication and social behavior in many animal species. It allows them to sense and analyze chemical signals necessary for survival and reproduction.