Final answer:
The 5 pairs of buccal podia are located in the oral vestibule, which is part of the oral cavity framed by cheeks, lips, gums, and teeth.
Step-by-step explanation:
The 5 pairs of buccal podia mentioned are located in the oral vestibule, which is the pocket-like part of the mouth. This area is bounded on the inside by the gums and teeth, and on the outside by the cheeks and lips. Notably, the cheeks contain the buccinator muscles that work alongside the orbicularis oris muscle in the lips to help keep food inside the mouth during chewing and to assist with speech.
In the broader context of the mouth, or oral cavity, we recognize important structures such as the lips, or labia, and the transition from external skin to the internal mucous membrane. The labial frenulum connects the lips to the gums, while the mucous membranes of the cheeks are made up of non-keratinized, stratified squamous epithelium.