Turbinate Bones (Nasal Conchae)
Vestibule Region of the Nasal Cavity
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The 
vestibule is the portion of the nasal cavity that lies directly posterior to the external nares (or nostrils).
- Because it is located near the body surface, the vestibule region is frequently exposed to destructive agents. To compensate, it is lined by the same stratified squamous epithelium that makes up the skin. The multiple layers of cells in this tissue create a barrier that helps protect the vestibule from damage.
Have you been making any of these common anatomy learning mistakes?
- Embedded in the epithelial lining are large nose hairs, called vibrissae.
- A layer of mucus typically covers the outer surface of the vibrissae.
- During inhalation, many airborne particles
adhere to the mucus-lined vibrissae, which prevents them from passing deeper into the respiratory passageways.
An Overview of the Vestibule Region of the Nasal Cavity:
Test yourself while observing the Vestibule Region of the Nasal Cavity
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Turbinate Bones (Nasal Conchae)
There are three turbinates on each side of the nasal cavity (Superior, middle, and inferior). Grooves are found between the curved turbinates. During inhalation, air is directed over and under the turbinates. The surface mucosa conditions or prepares the air so it can safely travel into the lungs.
Supportive Cartilages and Bones of the Nose
The nose is supported by upper and lower cartilages along with the maxilla and nasal bones. A pair of nasal bones support the bridge of the nose and the medial plates and frontal processes of the maxilla bones support the sides of the nose.
Supportive Bones and Cartilages of the Nasal Cavity
The nasal cavity is posterior to the nose and is framed and supported by several bones and cartilages. The nasal septum divides the nasal cavity into two chambers.
