Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Septum nasi
Introduction
The nasal septum separates the left and right airways in the nose, dividing the two nostrils.
It is depressed by the Depressor septi nasi muscle.
Composition
Composition
The fleshy external end of the nasal septum is sometimes also called columella.
The nasal septum is composed of three structures:
Clinical significance
Clinical significance
The nasal septum can depart from the centreline of the nose; this condition is known as a deviated septum. Trauma, excessive nose-picking and cocaine usage can cause septum perforations, or holes developing in the septum.
An operation to the nasal septum is known as a septoplasty.
Additional images
Additional images
-
Horizontal section of nasal and orbital cavities. -
Left orbicularis oculi, seen from behind. -
Cartilages of the nose, seen from below. -
Coronal section of nasal cavities. -
Front of nasal part of pharynx, as seen with the laryngoscope. -
MRI image showing nasal septum.
References
References
External links
External links
- Template:EMedicineDictionary
- Template:SUNYAnatomyFigs – “Diagram of skeleton of medial (septal) nasal wall.”
- Diagram at evmsent.org
Template:Head and neck general
ar:حاجز الأنف
de:Nasenscheidewand
hu:Orrsövény
simple:Nasal septum
Template:WikiDoc Sources
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]