Fun Facts About Your Olfactory System (Sense of Smell)
The human olfactory system is an intricate sensory network capable of distinguishing an estimated one trillion distinct odor combinations through combinatorial receptor codes. Positioned high within the nasal cavity, the olfactory epithelium contains specialized sensory neurons exposed directly to the external environment. Because these cells frequently suffer damage from airborne pollutants and pathogens, they are among the rare neurons in the human body that continually regenerate from basal stem cells roughly every 30 to 60 days. Once stimulated, olfactory signals uniquely bypass the…
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