ANATOMY

Detailed explanation-1: -This cavity is divided into two separate cavities by the septum and kept patent by a bone and cartilaginous framework. Each cavity consists of a roof, floor, medial wall, and lateral wall. Within each cavity are three regions; nasal vestibule, respiratory region, and olfactory region.

Detailed explanation-2: -The nasal cavity is divided into right and left halves by the nasal septum; each half opens on the face via the nares or nostrils and communicates behind with the nasopharynx through the posterior nasal apertures or the choanae.

Detailed explanation-3: -The nasal septum is the cartilage and bone in your nose. The septum divides the nasal cavity (inside your nose) into a right and left side. When the septum is off-center or leans to one side of the nasal cavity, it has “deviated.” Healthcare providers call this a deviated nasal septum.

Detailed explanation-4: -The bony portion of the septum includes the perpendicular plate of the ethmoid bone, the vomer, and the maxillary crest, which has contributions from the maxillary and palatine bones. The quadrangular cartilage forms the caudal portion of the septum.

Detailed explanation-5: -Here’s the bony part of the nasal septum. It’s formed by this part of the ethmoid bone, the perpendicular plate, and by this small bone that we haven’t encountered up till now, the vomer. The lowest part of the septum is formed by the maxilla and by the palatine bone.