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Wiki User
∙ 15y agoThe mercury thread forces its way through the constriction, causing it to be trappedafter expanding. An accurate reading can still be obtained after it contracts because the constriction has trapped the mercury.
The constriction acts as a "valve" as ina vein to prevent the mercury from flowing back.
Wiki User
∙ 12y agoIn case of ordinary thermometer if the thermometer is taken out the body whose temperature has been seen, the mercury would fall down as the bulb gets cooled. But in case of clinical thermometer even after the thermometer has been taken out of the mouth of the patient the level of mercury would be held at the same level though the bulb falls to the room temperature. So doctor could see the temperature liesurely. To bring back the mercury to lowest level we have to give jerks to the thermometer by shaking it.
Wiki User
∙ 13y agoto trap the mercury temporarily after expanding so it remains at the same position after taking it out of the substance to be measured. the constriction prevents the backflow of mercury
Wiki User
∙ 12y agoThe constriction in the capillary tube does not allow the mercury to flow back into the bulb when the thermometer is taken out of the patient's mouth.
Wiki User
∙ 11y agoIt stays at the maximum point so you get an accurate reading.
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Why is it more important to have constriction in a clinical thermometer than in a laboratory one?
It stays at the maximum point so you get an accurate reading
Why does the mercury not fall or rise in a clinical thermometer when taken out of the mouth?
Mercury does not fall or rise in a clinical thermometer when taken out from the mouth because of the KINK present in it.
Why does the temperature not fall immediately after taking a clinical thermometer from the mouth?
Because there is a constriction to prevent the indicator fluid falling to allow the maximum temperature to be read.
Difference between clinical and a laboratory thermometer?
A clinical thermometer can only measure human body temperatures since it can measure no less than 35 degrees celcius and no more than 42 degrees celcius. An ordinary thermometer can measure and object or substance at any temperature. A clinical thermometer can only measure human body temperatures since it can measure no less than 35 degrees celcius and no more than 42 degrees celcius. An ordinary thermometer can measure and object or substance at any temperature.
Which feature belongs to a clinical thermometer?
what characteristic belongs to a clinical thermometer
What is the different between clinical thermometer and liquid in glass thermometer?
a lab thermometer did not have a constriction as compared to clinical thermometer. it have a wide range of measurement and usually contains alcohol
Why is it more important to have a constriction in a clinical thermometer than in a laboratory?
It stays at the maximum point so you get an accurate reading
Why does the clinical thermometer have a constriction?
Quote: When the temperature falls, the column of mercury breaks at the constriction and cannot return to the bulb, thus remaining stationary in the tube. After reading the value, the thermometer must be reset by repeatedly swinging it sharply to shake the mercury back through the constriction. Unquote.
Why is it more important to have constriction in a clinical thermometer than in a laboratory one?
It stays at the maximum point so you get an accurate reading
Why does the mercury not fall or rise in a clinical thermometer when taken out of the mouth?
Mercury does not fall or rise in a clinical thermometer when taken out from the mouth because of the KINK present in it.
What is constriction?
constriction is one part of the thermometer that has like a hill
Why does the temperature not fall immediately after taking a clinical thermometer from the mouth?
Because there is a constriction to prevent the indicator fluid falling to allow the maximum temperature to be read.
Difference between clinical and a laboratory thermometer?
A clinical thermometer can only measure human body temperatures since it can measure no less than 35 degrees celcius and no more than 42 degrees celcius. An ordinary thermometer can measure and object or substance at any temperature. A clinical thermometer can only measure human body temperatures since it can measure no less than 35 degrees celcius and no more than 42 degrees celcius. An ordinary thermometer can measure and object or substance at any temperature.
What is the purpose of a constriction in a thermometer?
measture a tempreture
Which feature belongs to a clinical thermometer?
what characteristic belongs to a clinical thermometer
Why you need to prevent the Mercury of thermometer from falling back with the constriction?
So they can read the thermometer
What is the most used thermometer?
Clinical Thermometer
