LATERAL WALL OF NOSE

Concave from side to side
- Increase surface area
- Separates the nose from
- Parts
  - Anterior part
    - Vestibule
      - A small depressed area in anterior part
      - Modified skin with shift curved hairs called vibrissae
  - Middle part
    - Atrium Of middle meatus
  - Posterior part
    - Shelf like projections
      - Concha
        
        Inferior nasal concha
        
        Independent bone
        
        Middle nasal concha
        
        Projection from Medial surface of ethmoidal labyrinth
        
        Superior nasal concha
        
        Projection from .medial surface of ethmoidal labyrinth
        
        Highest nasal concha
      - Spaces between concha
        
        Meatus
        
        Superior nasal meatus
        
        Middle nasal meatus
        
        Atrium of middle meatus
        
        Ethmoidal bulla
        
        Ethmoidal infundibulum
        
        Semilunar hiatus
        
        Inferior nasal meatus
        
        Opening of nasolacrimal duct
        
        Common nasal meatus
        
        Nasopharyngeal meatus
        
        (Incisive duct)
- Framework
  - Bony
    - Nasal
    - Lacrimal
    - Labyrinth
    - Perpendicular plate of ethmoid bone
    - Medial Pterygoid plate
  - Cartilaginous
    - Superior nasal cartilage
      - Inferior nasal cartilage