Metaphor function of pharynx to manage traffic when swallowing food to the esophagus vector illustration sketch hand drawn with black lines, isolated on white background. Education Medical concept premium vector by a3701027d

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illustration sign human air transportation health healthy food medicine mouth respiratory medical children car nose symbol fever therapy neck switch stomach education metaphor biology science section tongue carry canal easy educational anatomy digestive cavity role nasal inflammation anatomical sore immune tonsil swollen larynx trachea mastication pharynx tracheotomy oesophagus adenoid

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