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Dissection of nasal fossae, nasal pharynx, and palate

Right lateral wall of nasal fossa and nasal pharynx dissected; relations of palatine tonsil

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Image #72-3
Diagram Image
Legend Image
Dissection of nasal fossae, nasal pharynx, and palate
Right lateral wall of nasal fossa and nasal pharynx dissected; relations of palatine tonsil
Portions of the conchae have been cut away to expose the openings of the paranasal sinuses and nasolacrimal duct. The pterygopalatine canal (20) has been opened and the cartilage of the auditory tube exposed. The muscles of the palate have been dissected and the palatine tonsil removed. Structures which lie lateral and anterior to the tonsil have been dissected.
  1. Left pointer: Ethmoidal cell (opened) Right pointer: Olfactory bulb left
  2. Superior nasal concha (partially resected)
  3. Nasal septum (cut edge)
  4. Ethmoidal infundibulum
  5. Hiatus semilunaris
  6. Ethmoidal bulla
  7. Middle nasal concha (partially resected)
  8. Middle nasal meatus
  9. Upper pointer: Lacrimal fold Lower pointer: Ostium of nasolacrimal duct
  10. Vestibule nasi and vibrissae (hair)
  11. Inferior nasal concha (partially resected)
  12. Upper pointer: Hard palate Lower pointer: Anterior palatine nerve
  13. Gingiva
  14. Mylohyoid muscle
  15. Upper pointer: Optic nerve (II) left Lower pointer: Hypophysis
  16. Sphenoid sinus left
  17. Sphenoid sinus right (pointer on ostium)
  18. Openings of ethmoidal cells (posterior)
  19. Upper pointer: Posterior superior nasal branch of sphenopalatine ganglion Lower pointer: Posterior nasal septal artery
  20. Upper pointer: Sphenopalatine foramen Lower pointer: Window cut in bone to expose pterygopalatine canal
  21. Tunica mucosa pharynx
  22. Pharyngeal branch of sphenopalatine ganglion
  23. Upper pointer: Posterior lateral nasal artery Lower pointer: Posterior inferior (lateral) nasal branch of sphenopalatine ganglion
  24. Greater palatine artery in the pterygopalatine canal
  25. Upper pointer: Cartilaginous auditory tube Lower pointer: Mucosa
  26. Palatine tensor veli muscle
  27. Palatine levator veli muscle
  28. Salpingopharyngeal muscle (note palatine branch of ascending palatine artery passing downward near pointer)
  29. Superior constrictor pharyngis muscle
  30. Prevertebral fascia
  31. Uvula
  32. Upper pointer: Glossopalatine muscle Lower pointer: Site of palatine tonsilla (resected)
  33. Internal pterygoid muscle
  34. Styloglossus muscle (cut across)
  35. Submaxillary gland
  36. Glossopharyngeal muscle (IX)
  37. Hypoglossus nerve (XII)
  38. Left pointer: Lingual nerve Right pointer: Submaxillary ganglion
  39. [Legend above restored translation from Latin]