Which two bones form the nasal septum?

Which two bones form the nasal septum?

• A. Maxilla and palatine
• B. Sphenoid and vomer
• C. Perpendicular plate of ethmoid and vomer
• D. Frontal and nasal

Answer: (C)

The nasal septum is a key structure in the nasal cavity, dividing it into the left and right sides. It is primarily formed by two specific bones: the perpendicular plate of the ethmoid bone and the vomer. The perpendicular plate of the ethmoid contributes the superior part of the septum, while the vomer forms the inferior part. Together, these bones provide both structural support and a division for airflow through the nasal passages. This anatomical arrangement is critical for proper respiratory function and also plays a role in the overall sense of smell by ensuring the right passageways for olfactory receptors.

In contrast, other options such as the maxilla, palatine, sphenoid, frontal, and nasal bones do not play a direct role in forming the nasal septum itself, as they are associated with other structures of the face and cranial anatomy. Understanding the composition of the nasal septum is essential for radiographic practices, particularly when assessing nasal injuries or conditions affecting the nasal cavity.