HEAD NECK
SALIVARY GLANDS
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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 oral cavity is lined by a mucous membrane (the oral mucosa) consisting of a stratified squamous epithelium, which may or may not be keratinized, and an underlying connective tissue layer, the lamina propria. The surface is kept moist with mucus produced by the major and numerous minor salivary glands.
Detailed explanation-2: -Nonkeratinized epithelium is associated with lining mucosa. Orthokeratinized and parakeratinized epithelium are both associated with masticatory mucosa. All forms of epithelium act as a barrier to pathogenic invasion and mechanical irritation and offer protection against dryness.
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