Which of the following does not occur in oral cavity
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Answer:
Anatomy of the oral cavity
The opening of the oral cavity is surrounded by the lips, two flexible muscular folds that extend from the corners of the mouth to the base of the nasal columella above and the mentolabial sulcus (fold above the chin) below . The lip is divided into three anatomic zones. The outer skin above and below the vermillion border is similar to skin at other sites and includes adnexal structures such as hair follicles, eccrine sweat glands, and sebaceous glands. The vermillion is a transitional zone with a thin stratum corneum and increased numbers of dermal blood vessels which impart a distinctive reddish-purple color. Although hair follicles and sweat glands are absent, ectopic sebaceous glands (Fordyce granules, see may be present. The labial mucosa covers the inside of the lip and meets the alveolar mucosa. It contains large numbers of mucus-producing salivary glands.