The nasal septum is composed of five structures : perpendicular plate of ethmoid bone vomer bone cartilage of the septum crest of the maxillary bone crest of the palatine bone Clinical significance The nasal septum can depart from the centreline of the nose ; this condition is known as a deviated septum .

The nasal septum is composed of three structures : ethmoid bone vomer bone quadrangular cartilage Clinical significance The nasal septum can depart from the centreline of the nose ; this condition is known as a deviated septum .
