Name: The Most Important Instrument
Uploaded: 2019-07-19
Duration: 7 min 34 s
Description: The more modern thermometer was invented in 1709 by Daniel Fahrenheit. In this video, we will learn about thermometers and how it is invented and used.

Question

Describe a clinical thermometer with a diagram.

Accepted Answer

A clinical thermometer is used to measure the body temperature of the human body. Clinical thermometer works within a temperature range from $35 ° C$ to $43 ° C (94 ° F to 108 ° F)$ . The normal temperature for the human body is $37 ° C$ .

The thermometer has a long and narrow tube with the same thickness along the entire length. On one side of this tube, a bulb containing mercury acts as a temperature sensor. There is also a scale on the thermometer to read the temperature. All clinical thermometers have a very thin capillary tube that originates in the bulb. As the temperature rises, the mercury expands through this tube. The capillary tube has a bend near the bulb or a kink, which prevents mercury from re-entering the bulb when the thermometer is removed from the patient's mouth or armpit.

Describe a clinical thermometer with a diagram.

Important Questions on Heat

Learn and Prepare for any exam you want !