The anterior boundary of the oral cavity's roof is formed by which structure?

• A. Hard palate
• B. Soft palate
• C. Epiglottis
• D. Nasal septum

Answer: (A)

The front part of the roof of the mouth is the hard palate. It’s the bony, rigid portion formed by the palatine processes of the maxilla and the horizontal plates of the palatine bones, separating the oral cavity from the nasal cavity. The soft palate sits behind it as the flexible posterior boundary, helping seal the nasopharynx during swallowing. The epiglottis is part of the larynx, and the nasal septum is inside the nasal cavity, not part of the oral cavity’s roof.