Which mouth structure is considered the boundary between the buccal cavity and the lingual cavity?

Question

Quizplus · Accepted Answer

The portion of the mouth outside the teeth is the buccal cavity,and that on the inner side of the teeth is the lingual cavity.The portion of the mouth outside the teeth is the buccal cavity,and that on the inner side of the teeth is the lingual cavity.The hard palate forms the upper boundary of the oral cavity.The hard palate is formed by the maxilla and palatine bones.The mandible and floor of the mouth form the lower boundary of the oral cavity.

Which Mouth Structure Is Considered the Boundary Between the Buccal