The oral cavity, commonly known as the mouth, is the entry point for food and air in the human body. It is bounded by the lips in front, the cheeks on the sides, and the palate on the top. The oral cavity contains important structures such as the teeth, gums, and tongue, which play vital roles in the processes of chewing and swallowing. In addition to its role in digestion, the oral cavity is also essential for speech and communication. It houses the salivary glands, which produce saliva to aid in digestion and maintain oral health. The oral cavity is lined with mucous membranes that help protect against infections and facilitate the movement of food.