Final answer:
The hard palate separates the oral and nasal cavities, providing a platform for the tongue to push food against.
Explanation:
The hard palate is part of the superior boundary of the oral cavity.
The hard palate, formed by the maxillary and palatine bones, separates the oral and nasal cavities, providing a rigid shelf for the tongue to push food against. The soft palate, composed mainly of skeletal muscle, is located behind the hard palate and allows for manipulation in functions like yawning, swallowing, and singing.
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