Left Lateral Nasal Cartilage (Cartilago nasi lateralis sinister)
Educational content only — not medical advice.
Anatomy
The left lateral nasal cartilage (upper lateral cartilage) is a triangular hyaline cartilage plate forming the middle third of the left nasal dorsum and lateral nasal wall. Continuous medially with the septal nasal cartilage and attached superiorly to the left nasal bone, its caudal border forms the internal nasal valve, the narrowest point of human nasal airflow resistance.
Clinical notes
Collapse of the upper lateral cartilage inward during deep inspiration produces internal nasal valve incompetence, a leading anatomical cause of nasal airway obstruction treated by spreader grafts.
Related structures
Educational references
FAQ
What is the role of the Left Lateral Nasal Cartilage?
The left lateral nasal cartilage (upper lateral cartilage) is a triangular hyaline cartilage plate forming the middle third of the left nasal dorsum and lateral nasal wall. Continuous medially with the septal nasal cartilage and attached superiorly to the left nasal bone, its caudal border forms the internal nasal valve, the narrowest point of human nasal airflow resistance.
Why is the Left Lateral Nasal Cartilage clinically important?
Collapse of the upper lateral cartilage inward during deep inspiration produces internal nasal valve incompetence, a leading anatomical cause of nasal airway obstruction treated by spreader grafts.
Source & license
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