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| Nasal septum | |
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| Bones and cartilages of septum of nose. Right side. | |
| Latin | septum nasi |
| Gray's | subject #223 993 |
| Artery | anterior ethmoidal posterior ethmoidal sphenopalatine greater palatine branch of superior labial1 |
| Nerve | anterior ethmoidal nasopalatine1 |
| MeSH | Nasal+septum |
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.
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Composition
The fleshy external end of the nasal septum is sometimes also called columella.
The nasal septum is composed of three structures:
Clinical significance
The nasal septum can depart from the centreline of the nose; this condition is known as a deviated septum. A perforated nasal septum can be caused by an ulcer, trauma due to an inserted object, excessive nose-picking or cocaine abuse. There's a new procedure that can be of help to those suffering from perforated septum. A silicone button can be inserted in the hole to close the open sore.
A operation to the nasal septum is known as a septoplasty.
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. |
 MRI image showing deviated septum |
References
External links
- Nasal+septum at eMedicine Dictionary
- SUNY Figs 33:02-01 - "Diagram of skeleton of medial (septal) nasal wall."
- Diagram at evmsent.org
- Norman/Georgetown lesson9 (nasalseptumbonescarti)
See also
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