Oral cavity temperature vs rectal temperature

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SUMMARY

The discussion centers on the physiological differences between oral cavity temperature and rectal temperature. It is established that oral temperature is typically lower than rectal temperature due to factors such as ambient air temperature and saliva evaporation. The absence of air movement and drinking in the anal cavity contributes to maintaining a higher rectal temperature. These physiological principles are crucial for accurate body temperature measurement.

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Emmanuel_Euler
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Hello Guys How are you?? Today i was studying physiology Body temperature measurement and i saw in general and in normal conditions that the oral cavity temperature is lesser than rectal temperature but why the oral temperature is lesser than rectal temperature?? And what is the reason?
 
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Ambient air temperature is usually lower than body temperature, and as air moves through the mouth it can evaporate saliva. Both factors lower oral temperature.
Drinking cool liquid really lowers temperature for a short period.

The anal cavity does not have ambient air moving through it. No drinking either.
 
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Thanks for help
 

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