CC, ISM / SCIENCE PHOTO LIBRARY CC, ISM / SCIENCE PHOTO LIBRARY
Swollen larynx. Endoscope view of the inside of the larynx (voicebox) of a patient with oedema of the larynx. Oedema is swelling caused by the retention of water, and can have a variety of causes. The larynx is the lower part of the throat, and forms part of the upper respiratory tract. Air from the mouth and nose passes through the larynx to reach the lungs. The larynx contains the vocal cords, where air passing out of the lungs resonates to produce vocal sounds. This swelling would interfere with this, possibly causing the patient to lose their voice. An endoscope is a tube, with a camera on its tip, used to examine the inside of the body.
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