Olfactory sensation ( Sensation of smell )

Olfactory sensation ( Sensation of smell ) :

The receptors for smell are olfactory cells situated at the top of the olfactory cleft which is found in each nostril gaseous particles in the inhaled air arouse chemical action in these cells and cause nerve current to be transmitted by the olfactory nerve to the brain. Smell is very important sometimes we tend to select the food on the basis of its smell.
A Dutch psychologist, Henning has attempted to divide smells into six fundamental classes namely :...........READ

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