Podcast
Questions and Answers
Which muscle elevates the hyoid bone or depresses the mandible?
Which muscle elevates the hyoid bone or depresses the mandible?
What forms the arched roof of the mouth and the floor of the nasal cavity?
What forms the arched roof of the mouth and the floor of the nasal cavity?
What is the opening between the oral cavity and the oropharynx called?
What is the opening between the oral cavity and the oropharynx called?
Which muscle is inserted into the anterior surface of the body of the hyoid bone?
Which muscle is inserted into the anterior surface of the body of the hyoid bone?
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What is bounded externally by the lips and cheeks, internally by gums and teeth, and opens into outside through the oral fissure?
What is bounded externally by the lips and cheeks, internally by gums and teeth, and opens into outside through the oral fissure?
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Study Notes
Muscles of the Mouth
- The digastric muscle elevates the hyoid bone or depresses the mandible.
- The mylohyoid muscle is inserted into the anterior surface of the body of the hyoid bone.
Oral Cavity Anatomy
- The hard palate forms the arched roof of the mouth and the floor of the nasal cavity.
- The oral cavity is bounded externally by the lips and cheeks, and internally by the gums and teeth.
- The oral cavity opens to the outside through the oral fissure.
Boundaries and Openings
- The opening between the oral cavity and the oropharynx is called the faucial isthmus.
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Description
Test your knowledge of the muscles and nerves of the oral cavity, including the floor of the mouth, palate, tongue, and oral vestibule. Explore the anatomy of the oropharyngeal isthmus and its boundaries.
