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Epiglottis during swallowing

Epiglottis during swallowing

C023/5995

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Credit

DR. CH. FERLAUD - CNRI / SCIENCE PHOTO LIBRARY DR. CH. FERLAUD - CNRI / SCIENCE PHOTO LIBRARY

Caption

Epiglottis during swallowing, bronchoscope view. During swallowing the epiglottis, an elastic cartilage flap in the larynx, is bent to cover the windpipe to allow the passage of the food into the oesophagus. Swallowing, or deglutition, is a complicated process involving over twenty-two muscle groups and the coordination of the tongue, soft palate, pharynx, and esophagus. The first stage is a voluntary action in which the tongue presses against the roof of the mouth and contracts to pass the food to the oropharynx. The second stage, an involuntary action, involves the uplifting of the larynx to allow the epiglottis to cover the trachea while peristaltic contractions move food down the pharynx and esophagus.

Release details

Model release not required. Property release not required.

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