Olfactory slit

  • Area in the upper part of the nasal cavity near the roof where the olfactory nerve endings are present
  • In normal respiration, only about 5% of air passes through the olfactory slit area
  • During deep respiration / sniffing, the proportion of air flowing through the olfactory slit increases and we have improved sense of smell
  • When we have common cold, mucus gets collected and obstructs the olfactory slit resulting in impaired sense of smell

Synonyms / alternate names:

  • Olfactory cleft

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