TONGUE MIXED SALIVARY GLAND
ORAL CAVITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Histological specimen of an oral cavity organ shows that anterior surface is lined with multilayer flat non-keratinizing epithelium and posterior surface-with multirow ciliated epithelium. What organ is it?
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Gum
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Lip
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Cheek
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Soft palate
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Hard palate
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Explanation:
Detailed explanation-1: -The entire surface of the oral mucosa is covered by squamous stratified epithelium. This is a highly organized, avascular, and semipermeable tissue whose thickness and degree of keratinization varies according to the location in the oral cavity and the area’s functional and mechanical requirements.
Detailed explanation-2: -The oral mucosa that covers the underside of the tongue (Figure 12-31), inside of the lips (Figure 12-32), cheeks, floor of the mouth, and alveolar processes as far as the gingiva (see Figure 12-30) is subject to movement. These regions, together with the soft palate, are classified as lining mucosa.
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