Anatomy of the Oral Cavity
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Questions and Answers

What is the boundary between the oral cavity and the pharynx?

  • The buccinator muscle
  • The oropharyngeal isthmus (correct)
  • The oral fissure
  • The alveolar periosteum

    • What is the name of the space between the lips and the cheeks externally and the gums and the teeth internally?

  • The vestibule (correct)
  • The oropharyngeal isthmus
  • The pharynx
  • The oral cavity proper

    • What forms the floor of the mouth?

  • The soft palate
  • The hard palate
  • The sublingual gland
  • The anterior two thirds of the tongue and the reflection of the mucous membrane from the sides of the tongue to the gum of the mandible (correct)

    • What is the function of the elastic fibers in the submucosa?

    <p>To prevent the mucous membrane from being bitten between the teeth</p> Signup and view all the answers

    What is the midline fold of mucous membrane that connects the undersurface of the tongue to the floor of the mouth?

    <p>The frenulum of the tongue</p> Signup and view all the answers

    Where does the duct of the parotid salivary gland open?

    <p>Into the vestibule opposite the upper second molar tooth</p> Signup and view all the answers

    What is located on either side of the frenulum of the tongue?

    <p>The submandibular duct of the submandibular gland opens onto the floor of the mouth</p> Signup and view all the answers

    What is the role of the tone of the buccinator muscle and the muscles of the lips?

    <p>To keep the walls of the vestibule in contact with one another</p> Signup and view all the answers

    What is the function of the sublingual gland?

    <p>It produces a low fold of mucous membrane</p> Signup and view all the answers

    What is the name of the mucous membrane that covers the gingiva or gum?

    <p>The mucous membrane of the gingiva</p> Signup and view all the answers

    What is the location of the opening of the numerous ducts of the sublingual gland?

    <p>On the summit of the sublingual fold</p> Signup and view all the answers

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