1. Which of the following structures forms the roof of the

oral cavity?

a) Soft palate

b) Hard palate

c) Uvula

d) Alveolar process

Answer: b) Hard palate

Rationale: The hard palate is the bony anterior part that

separates the oral and nasal cavities, providing structural

support to the roof of the oral cavity.

2. The orofacial cleft is a congenital defect that occurs due

to the incomplete fusion of which structures?

a) Lip and mandible

b) Maxilla and alveolar process

c) Soft and hard palate

d) Tongue and uvula

Answer: c) Soft and hard palate

Rationale: Orofacial clefts occur when the soft and hard

palate fail to fuse during embryonic development, leading