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7 Cards in this Set
- Front
- Back
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SPHENOIDAL SINUS
-located? -drains into? -pterygoid canal? |
D. Sphenoidal sinus
1. Located within the body of the sphenoid (a bony septum, which is usu- ally deviated, separates the two Sphenoidal sinuses); drains into the sphenoethmoidal recess 2. The pterygoid canal, which transmits the nerve of the pterygoid canal, may produce a posterior-to-anterior ridge along its floor |
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MAXILLARY SINUS
-anterior/posterior walls? |
E. Maxillary sinus
1. Its anterior and posterior walls are formed by the anterior and infra- temporal surfaces of the maxilla, respectively; its medial wall forms the inferior part of the lateral nasal wall and the lateral wall extends into the zygomatic bone |
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MAXILLARY SINUS
FLOOR |
E. Maxillary sinus
2. Its floor is formed by the alveolar process of the maxilla and may ex- hibit elevations produced by the roots of the upper molar teeth; its roof is the floor of the orbit and may exhibit a posterior-to-anterior ridge formed by the infraorbital groove and infraorbital canal |
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MAXILLARY SINUS
-DRAINS INTO -EXTRACTION OF UPPER MOLAR |
E. Maxillary sinus
3. Drains into the nasal cavity through the semilunar hiatus 4. Clinical note: extraction of an upper molar may create a fistula, or ab- normal opening, between the maxillary sinus and oral cavity |
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NERVE/BLOOD
FRONTAL SINUS |
F. Nerve and blood supply
1. Frontal sinus: supratrochlear and supraorbital nerves and vessels |
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NERVE/BLOOD
ANTERIOR/MIDDLE ETHMOIDAL AIR CELLS POSTERIOR ETHMOIDAL AIR CELLS |
2. Anterior and middle ethmoidal air cells: anterior ethmoidal nerve and
vessels 3. Posterior ethmoidal air cells and Sphenoidal sinus: posterior superior lateral nasal nerves, posterior lateral nasal vessels, and the posterior ethmoidal nerve and vessels |
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NERVE/BLOOD
MAXILLARY SINUS |
4. Maxillary sinus: posterior superior alveolar, middle superior alveolar,
anterior superior alveolar, and infraorbital nerves; posterior superior alveolar, anterior superior alveolar, and infraorbital vessels |
