Understanding Septoplasty: Nasal Septum anatomy as seen in the Sagittal section of a CTScan

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Red line showing the area of quadrilateral cartilage

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Green lines showing the overlapping nasal tip cartilages

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 The area between the Anterior nasal spine and the anterior extent of nasal bones, shown by the grey vertical line, is a common fracture line through the septal cartilage, causing nasal obstruction.

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Inferior and obliquely placed area of the nasal septum, shown by the oblique grey line, is a common site for fractures and spurs

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 The white line shows the septal cartilage and bone which can be safely harvested as a graft material.

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