Question

Why the thermometer kept under the tongue ??

Answer 1

because under the toungs their is a intense heat and also cove the tip of thermometer from our breath if the tip contact with the our cooler breath the thermometer can give incorrect temperature of our body.

The underside of the tongue has the most bloodflow and is more accurate than any part of the mouth

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Answer 2

so that the air from breathing does not pass over it and cool it thereby giving an incorrect reading To give a true reading of inner body heat.Because the intense heat of our body is present under our tongue so that we can measure our whole body temperature .
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