Which feature lines the anterior edge of the nasal cavity?

Which feature lines the anterior edge of the nasal cavity?

• A. Ciliated Mucous Membrane
• B. Cartilage
• C. Coarse Nasal Hairs (Vibrissae)
• D. Bone

Answer: (C)

The front edge of the nasal cavity is lined by coarse nasal hairs, called vibrissae. These hairs form a physical filter right at the nostril opening, catching large particles like dust and pollen before the air travels deeper. This early line of defense helps protect the delicate mucous membranes and keep debris from reaching the respiratory passages. While the interior surfaces of the nasal cavity are lined with a ciliated mucous membrane that humidifies air and clears smaller particles, that lining is not at the very anterior edge. Cartilage and bone provide structure and support for the nostrils and nasal passages, not the lining at the entrance.

The front edge of the nasal cavity is lined by coarse nasal hairs, called vibrissae. These hairs form a physical filter right at the nostril opening, catching large particles like dust and pollen before the air travels deeper. This early line of defense helps protect the delicate mucous membranes and keep debris from reaching the respiratory passages. While the interior surfaces of the nasal cavity are lined with a ciliated mucous membrane that humidifies air and clears smaller particles, that lining is not at the very anterior edge. Cartilage and bone provide structure and support for the nostrils and nasal passages, not the lining at the entrance.