Septal Nasal Cartilage (Cartilago septi nasi)
Educational content only — not medical advice.
Anatomy
The septal nasal cartilage is a quadrilateral plate of hyaline cartilage that forms the major anterior partition of the nasal septum. Articulating posterosuperiorly with the perpendicular plate of the ethmoid, posteroinferiorly with the vomer, and anteroinferiorly with the maxillary crest, it determines the projection and straight alignment of the external nose and divides the nasal cavity into symmetrical halves.
Clinical notes
Septal deviation causes unilateral nasal obstruction and sinusitis; blunt nasal trauma can produce a subperichondrial septal hematoma, which, if undrained, causes ischemic necrosis of the septal cartilage and a permanent "saddle nose" deformity.
Related structures
Educational references
FAQ
What is the role of the Septal Nasal Cartilage?
The septal nasal cartilage is a quadrilateral plate of hyaline cartilage that forms the major anterior partition of the nasal septum. Articulating posterosuperiorly with the perpendicular plate of the ethmoid, posteroinferiorly with the vomer, and anteroinferiorly with the maxillary crest, it determines the projection and straight alignment of the external nose and divides the nasal cavity into symmetrical halves.
Why is the Septal Nasal Cartilage clinically important?
Septal deviation causes unilateral nasal obstruction and sinusitis; blunt nasal trauma can produce a subperichondrial septal hematoma, which, if undrained, causes ischemic necrosis of the septal cartilage and a permanent "saddle nose" deformity.
Source & license
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