Notes summarising the anatomy of the nose, the paranasal sinuses, blood supply and nervous supply of each of them, which is a component of Head & Neck anatomy in dentistry. I wrote these notes myself when I was studying for my own exam and my notes helped me get a first (A) in my exam!
Nares – external opening to the nose Nasal region
Choanae – posterior opening to nasopharynx Vestiibule
o Stratified squameous epithelium
External nose Constant aibrasion
Cartilages: Respiratory
o Septal o Ciliated pseudostratified columnar epithelium
o Lateral processes Upper respiratory tract -> cilia
o Major alar Olfactory
o Minor alar o Specialised epithelium (sense of smell)
Respiratory epithelium
Ciliated pseudostratified columnar epithelium
o Ciliated cells (movements)
o Goiblet cells (mucous)
o Basal cells (Stem cells)
Nasal septum
Septal cartilages
Perpendicular plate of ethmoid 2 Nasal cavities
Vomer (inferior posterior) Wall Formed Anterior Posterior Extra
iby/Shape
Medial Nasal septum Septal Vomer and
cartilage ethmoid
Floor Wider than Palatine Horizontal Incisive
roof process of plate of canal:
maxilla palatine (hard deep to
palate) mucosal
lining of
floor)
Roof Narrow Nasal and Ethmoid and
superiorly frontal ibone sphenoid
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