Final answer:
The fascial spaces of the mouth include the oral vestibule, the fauces, and the oral cavity proper.
Step-by-step explanation:
The fascial spaces of the mouth include the oral vestibule, the fauces, and the oral cavity proper. The oral vestibule is a pocket-like part of the mouth framed by the gums, teeth, cheeks, and lips. The fauces is the opening between the oral cavity and the throat, while the oral cavity proper extends from the gums and teeth to the fauces.