Pharynx Anatomy and Physiology
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Questions and Answers

What is the primary function of the cricopharyngeus muscle during swallowing?

  • To initiate the swallowing reflex
  • To prevent air from entering the esophagus (correct)
  • To contract the pharynx for better food propulsion
  • To facilitate the passage of food into the larynx
  • Which of the following arteries is NOT involved in supplying blood to the pharynx?

  • Ascending pharyngeal artery
  • Descending thoracic artery (correct)
  • Tonsillar artery
  • Pharyngeal branch of the maxillary artery
  • Which part of the pharynx is connected to the larynx?

  • Pharyngeal inlet (correct)
  • Oropharynx
  • Nasopharynx
  • Laryngopharynx
  • From which artery does the ascending palatine artery branch off?

    <p>External carotid artery</p> Signup and view all the answers

    Which vein is primarily responsible for draining venous blood from the pharynx?

    <p>Pharyngeal plexus of veins</p> Signup and view all the answers

    Study Notes

    Pharynx Anatomy

    • Part of the pharynx located behind the larynx
    • Connected to the larynx through the laryngeal inlet
    • Inferior constrictor muscle has a superior portion (thyropharyngeus) located opposite the thyroid cartilage
    • Inferior constrictor muscle has an inferior portion (cricopharyngeus) located opposite the cricoid cartilage; this section prevents air from entering the esophagus during swallowing

    Pharynx Blood Supply

    • Supplied by the ascending pharyngeal artery (branch of external carotid artery)
    • Supplied by ascending palatine artery (branch of facial artery)
    • Supplied by tonsillar artery (branch of facial artery)
    • Supplied by a pharyngeal branch of the maxillary artery

    Pharynx Venous Drainage

    • Veins of the pharynx converge to form the pharyngeal plexus of veins
    • Pharyngeal plexus drains into the internal jugular vein

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    Description

    This quiz covers the anatomy, blood supply, and venous drainage of the pharynx. Explore the connection of the pharynx to the larynx, the muscles involved, and the relevant arteries and veins. Test your knowledge on the important structures and functions related to the pharynx.

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