SMELL AND TASTE

SMELL AND TASTE

SMELL

* Our nose is the organ we use to smell.

* Air enters the nose through the nostrils.

* The olfactory nerve sends information to our brain which tell us what we can smell.

* We ca smell about 10,000 different odours.

TASTE

* Our tongue is the organ we use to taste.

* Our tongue is convered in taste buds. These identify different tastes.

* Nerves send information about the different tastes to our brain.

* We can identify four basic tastes: sweet, salty, bitter and sour.

 SMELL AND TASTE

* Our sense of smell detects chemicals in the air. When the air enters our nose through our nostrils, these chemicals come into contact with nerve receptors. The nerve receptors send this information along the ofactory nerve to our brain.

* The receptor cells for taste are on the tongue inside each taste bud. The receptors detect different tastes (bitter, sour, salty and sweet).

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