Which bones compose the roof of the nasal cavity?

The bones that compose the roof of the nasal cavity are the ethmoid and sphenoid bones. The ethmoid bone features a horizontal plate known as the cribriform plate, which forms a significant part of the anterior roof of the nasal cavity. Additionally, the body of the sphenoid bone contributes to the posterior part of this roof.

The ethmoid bone contains numerous small openings that allow for the passage of the olfactory nerve fibers, crucial for the sense of smell, while the sphenoid bone provides structural support and helps form the base of the skull. Together, these bones create a cavity that not only supports respiratory function but also plays a vital role in the olfactory system.