Labels:text | font OCR: CLINICAL THERMOMETER A clinical thermometer records a patient's body temperature. The mercury in the bulb expands and forces its way through the narrow constriction. When the thermometer MERCURY is read, the constriction prevents the cooling mercury from returning to the bulb. The thermometer shows - CONSTRICTION the patient's temperature until the mercury is shaken back down. BULB
(.png)
(Dorling Kindersley).iso/article3/ther/ther0z.dib/ther0z.png)