Patient ventilation. Illustration of a sagittal section through a patient's head and neck, showing the position of the airway in the throat before and

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Patient ventilation. Illustration of a sagittal section through a patient's head and neck, showing the position of the airway in the throat before and after positive ventilation. Before the ventilation (left), the patient's airway was blocked by inflamed and swollen throat tissues, with a negative air pressure in the lungs (minus signs). After ventilation with a face-mask (right), the air pressure (plus signs) has forced air into the lungs.

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Size: 4827px × 3620px
Photo credit: © MAURIZIO DE ANGELIS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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