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Showing posts from February, 2023

THERMOMETER

THERMOMETER The thermometer is used as an “instrument for measuring temperature.” “Thermo” is a prefix related to heat, and “meter” is a suffix used for any measuring device. What is a normal body temperature? The normal body temperature is about 98.6 degrees in Fahrenheit (° F) or 37 degrees in Celsius (° C). Normal body temperature is usually lower in the morning and higher during the day. It reaches its peak in the late afternoon or in the evening. Primary and secondary thermometers Depending on how the measured gross physical quantity is assigned to the temperature, the thermometer is called primary or secondary. “For the primary thermometers, the measurement properties of the matter are well known, so that the temperature can be calculated without unknowns. For example, the thermometer based on the equation of state of a gas, the speed of sound in a gas , thermodynamics, noise voltage or current of a resistance, and the angular anisotropy of gamma rays emitted by certain radionucl...

VIDEO LARYNGOSCOPE

  VIDEO LARYNGOSCOPE What does Larynx do? The larynx is a hollow tube that connects the rest of the respiratory system to the throat (pharynx). It is also called as voice box since it helps in swallowing and protects the vocal cords. The major role of larynx is assisting you in speaking, breathing, and swallowing. Larynx is located at the rear of your throat and the top of your trachea, or windpipe. It is home to your vocal cords, which vibrate to produce sounds when you talk. Overview of laryngoscope: Laryngoscope is an endoscope of the larynx. A laryngoscope is a small hand instrument that doctors use to see into your larynx and other neighboring regions of your throat, or to introduce a tube into your windpipe to help you breathe. A small video camera is frequently included in modern versions of the laryngoscope gadget. • Indications for laryngoscopy  Diagnostic  Therapeutic Diagnostic: 1. Hoarseness 2. Voice changes 3. Chronic cough 4. Choking episodes 5. Odynophagia ...