Judged: two independent readers; copy check clear.
Jacobson’s organ
Jacobson’s organ Jacobson’s organ is an extra chemical-sensing structure, separate from the main smell lining, located near the base of the nasal septum by the vomer.
Jacobson’s organ is an extra chemical-sensing structure, separate from the main smell lining, located near the base of the nasal septum by the vomer. It relays chemical cues such as pheromones to the central nervous system and can affect social and reproductive behavior; in humans, most of it regresses after birth.