Why clinical thermometer has a kink just above the bulb?
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A clinical thermometer has a kink (or constriction) in its glass tube just above the bulb containing mercury . The kink is to prevent the back flow of mercury into the thermometer bulb when the thermometer bulb is removed from the mouth of a patient.
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(2) A clinical thermometer has a kink (or constriction) in its glass tube just above the bulb containing mercury . The kink is to prevent the back flow of mercury into the thermometer bulb when the thermometer bulb is removed from the mouth of a patient.
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