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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

Image #72-3

KEYWORDS: Face, Mouth, Nose.

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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

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
* .	[Legend above restored translation from Latin]