Dictionary of Cancer Terms
View in Spanish: Cavidad bucal
Oral cavity (OR-ul KA-vih-tee)
Refers to the mouth. It includes the lips, the lining inside the cheeks and lips, the front two thirds of the tongue, the upper and lower gums, the floor of the mouth under the tongue, the bony roof of the mouth, and the small area behind the wisdom teeth.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.