The nasal cavity is a hollow chamber found deep to the nose, divided by a middle septum.

Figure 1. Bones of the nasal cavity (Credit: OpenStax, CC BY-SA 4.0)

Functions

  • Orifice for air intake (breathing)
  • Air processing (moistening, warming up, cleaning)
  • Olfactory (sense of smell)
  • Drainage for air sinuses and ducts
  • Proper speech (resonance)

Borders

The borders of the nasal cavity are regarded to the bones that surround it.

SuperiorFrontal bone
Body of the sphenoid
Ethmoid bone
InferiorThe horizontal plate of the palatine bone
The palatine process of the maxilla
MedialVomer
The nasal spine of the frontal bone
Perpendicular




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