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What does ‘mucous membrane’ refer to in dental terminology?

  1. Outer layer of teeth

  2. Lining of the oral cavity

  3. Inner part of the gums

  4. Surface of the tongue

The correct answer is: Lining of the oral cavity

The term 'mucous membrane' in dental terminology specifically refers to the lining of the oral cavity. This membrane is vital as it serves various functions, including protecting underlying tissues, aiding in the process of digestion through the secretion of mucus, and acting as a barrier against pathogens. The oral mucosa is also essential for the sensation of taste and maintaining moisture within the mouth, which is crucial for overall oral health. Understanding this term is important for anyone studying dentistry, as it relates to many aspects of oral care and dental procedures.