Which of the bone is NOT a component of the bony pa of nasal septum?

The nasal septum is composed of quadrilateral cailage and five bones such as premaxilla, crest of maxillary bone, crest of palate bone, vomer and perpendicular plate of ethmoid. Composition of nasal septum:Anteriorly by the quadrilateral cailage and maxilla.Posteriorly by perpendicular plate of the ethmoid bone and sphenoid crest.Inferiorly by crest of the vomer, maxillary, and palatine bones.The skin within the nasal vestibule is a keratinized squamous cell epithelium containing vibrissae and sebaceous glands.At the leading edge of the inferior turbinate the epithelium transitions into a cuboidal cell type and then into pseudostratified ciliated columnar respiratory epithelium.At the most posterior aspect of nasopharynx, the mucosa returns to a non keratinized squamous cell epithelium.