Explain the anatomy of the Mouth. Well, this mouth is an oval-shaped cavity inside the skull. The two main functions of the mouth are eating and speaking. The mouth is the beginning of the digestive tract. Digestion starts before you even take a bite. Parts of the mouth include the lips, vestibule, mouth cavity, gums, teeth, hard and soft palate, tongue, and salivary glands. The mouth is also known as the oral cavity or the buccal cavity. The oral cavity includes the lips, gingivae, retromolar trigone, teeth, hard palate, cheek mucosa, mobile tongue, and floor of the mouth. The major salivary glands are in close relation with oral cavity structures, although they are not part of the oral cavity. Landmarks of the oral tissues include the palate, tongue, cheek,s, and floor of the mouth. The chief structures of the mouth are the teeth, suitable for digestion; the tongue, which mixes food and also carries sensory receptors for taste; and the palate, which separates the mouth from the nasal cavity, allowing separate passages for air and food. All these structures, along with the lips, are involved in the formation of speech sounds by modifying the passage of air through the mouth.

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