Nasal Cavity Flashcards
What are the walls of the nasal cavity?
- Nasal septum
- Floor
- Roof
- Lateral wall
What are the regions if the nasal cavity?
- Naris - anterior nasal aperture
- Vestibule
- Atrium
- Respiratory region
- Olfactory region
- Choana - posterior nasal aperture
NAVROC
What are the details of the nasal septum?
- Vomer.
- Perpendicular plate of ethmoid bone.
- Septal cartilage.
V Pp S
Think MBBS but with the M inverted and separated to produce two Vs
What are the details of the nasal floor?
- Intermaxillary (incisive) bone (primary plate)
- Palatine process of the maxilla
- incisive foramen - Horizontal plate of the palatine bone
- greater palatine foramen
- lesser palatine foramen
Think HIP
What are the details of the nasal roof?
- Medial aspects of nasal bone - anteriorly
- Nasal part of the frontal bone - between nasal & ethmoid bones
- Cribiform plate - middle part
- Sphenoid body - posterosuperiorly
Think MNCS as in mences (period)
What are the details of the nasal lateral wall?
- Nasal bone
- Nasal surface of frontal process & body of the maxilla
- Lacrimal bone
- Labyrinth of ethmoid bone
- superior concha
- middle concha - Inferior nasal concha
- Vertical lamina of the palatine bone
- orbital process
- sphenoidal process
~ sphenopalatine foramen - Middle pterygoid plate
What are the surface features of the mucous membrane of the lateral wall?
- Sphenoethmoidal
Recess - Superior concha
- Middle concha
- Ethmoidal bulla
- Ethmoid’s uncinate process
- Hiatus semilunar is
- Inferior concha
- Inferior meatus
What is associated with the sphemoethmoidal recess?
Opening of the sphenoidal sinus.
What is associated with the superior concha?
Superior meatus
-openings of posterior ethmoidal air cells
What is associated with the middle concha?
Middle meatus
What is associated with the ethmoidal bulla?
Opening of the middle ethmoidal air cells.
What is associated with the hiatus semilunaris?
- Ethmoidal infundibulum
- opening of frontal sinus (frontonasal duct)
- opening of anterior ethmoidal air cells
2. Opening of the maxillary sinus
What is associated with the inferior meatus?
Opening of the nasolacrimal duct.
What are the regions of each half of the nasal cavity?
- Vestibule
- Respiratory region
- Olfactory region
What does the respiratory region include?
- Atrium of middle meatus.
- Middle nasal concha
- Middle meatus
- Inferior nasal concha
- Inferior meatus
- Opposing nasal septum & nasal floor
