How many bones make up the nasal septum in the human skull?

• A. Three
• B. Four
• C. One
• D. Two

Answer: (D)

Verified step by step guidance

1. Understand the anatomy of the nasal septum, which is the structure that separates the left and right airways in the nose, dividing the two nostrils.
2. Identify the bones that contribute to the formation of the nasal septum. The nasal septum is primarily composed of two bones.
3. The first bone is the perpendicular plate of the ethmoid bone, which forms the superior part of the nasal septum.
4. The second bone is the vomer, which forms the inferior and posterior part of the nasal septum.
5. Recognize that these two bones, the perpendicular plate of the ethmoid and the vomer, together make up the bony part of the nasal septum.