Maxillary Sinus Anatomy
Pyramidal shape
Roof : floor of orbit
Floor : alveolar bone and palatine process
Anterior wall : facial surface of maxilla
Posterior wall : infratemporal surface
Medial wall : lateral wall of nasal cavity
Sinus membrane
Schneiderian membrane
Mucoperiosteum cansists 3 layers
1.Epithelium lining : pseudostratified columnar ciliated epithelium
2.Lamina propria can stripped easily from
3.periosteum underlying bone
There are numerous globlet cell
Most of the serous and mucous glands found in the lining are located near the maxillary ostium
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