Anatomy of Lateral wall of Nose

Last modified: May 30, 2021
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Lateral wall of nose is formed by

  1. Ethmoid Bone:
     Superior Turbinate.
     Middle Turbinate.
     Uncinate Process.
  2. Inferior Turbinate Bone
  3. Maxilla:
     Frontal Process.
  4. Palatine Bone:
     Perpendicular plate.
  5. Lacrimal Bone.
  6. Nasal Bones.
Lateral wall of nose
Lateral wall of nose
Lateral wall of nose in Cadaver
Lateral wall of nose in Cadaver

LATERAL WALL OF NOSE contains three meatus underneath three turbinates: Turbinates are bony projections covered by Erectile mucosa serves to increase the interior surface area.

Inferior Turbinate:

  • A separate bone (Not part of ethmoid bone).
  • Irregular surface , grooved by vascular channels.
  • Articulates with inferior margin of maxillary hiatus (maxillary process) , ethmoid , palatine and lacrimal bone.
  • Separate ossification center  ~ 5th month of IU life
  • Has submucosal cavernous plexus with large sinusoids – under autonomic control (nasal resistance)
  • Covered by respiratory epithelium with large no. of goblet cells
  • Inferior meatus: is the area of the lateral wall of the nose covered medially by the inferior turbinate.
  • Part of lateral wall of nose lateral to inferior turbinate
  • Largest meatus ~ entire length of nasal cavity
  • Highest at junction of anterior and middle third.
  • 1.6 – 2.3 cm at 1.6 cm
  • Nasolacrimal duct opens just anterior to highest point
  • Drains: Nasolacrimal Duct (Hasner’s valve).

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