this is a longitudinal section in the head and the neck showing the structures of the pharynx ( nasophrynx,oropharynx and laryngopharynx)
showing:
1. pharyngeal tonsils
2. nasopharynx
3. salpinx
4. opening of auditory tube
5. oropharynx
6. laryngeal inlet
7. laryngopharynx
8. larynx
9. esophagus
10. trachea
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