Figure 53-2 Scheme of respiratory and digestive cavities in the head and neck. Note that the pharynx acts as a common channel for both respiration and deglutition and that the air and food passages cross each other. (After Braus.)
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Figure 53-2 Scheme of respiratory and digestive cavities in the head and neck. Note that the pharynx acts as a common channel for both respiration and deglutition and that the air and food passages cross each other. (After Braus.)