Certified Tumor Registrar (CTR) Practice Exam

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What is the name of the mucous membrane lining the inner cheeks?

Palate
Gingiva
Buccal mucosa
Sublingual mucosa

The correct answer is: Buccal mucosa

The mucous membrane lining the inner cheeks is referred to as the buccal mucosa. This thin layer of tissue serves several important functions, including protecting the underlying structures of the oral cavity, facilitating speech and swallowing, and providing a moist environment for food processing. The term "buccal" specifically pertains to the cheek area, which distinguishes it from other mucous membranes in the oral cavity, such as the palate (which forms the roof of the mouth), the gingiva (the gums surrounding the teeth), and the sublingual mucosa (the tissue under the tongue). Understanding the anatomy and terminology of different oral structures is crucial for accurate communication and documentation in the health field, particularly for those involved in cancer registry and treatment contexts.