ABSTRACT
The nasal cavity is an irregularly-shaped space in the front of the head extending from the bony palate upwards to the cranium (Figure 9.1). The bony framework of the nasal cavity is formed by the fusion of seven bones (Figure 9.2). It produces a chamber approximately 7.5 cm long by 5 cm high, subdivided into the right and left halves by a cartilaginous wall, the nasal septum. The septum consists of the anterior septal cartilage and posteriorly, the vomer and perpendicular plate of the ethmoid bone. It terminates at the nasopharynx.
