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Surface Anatomy: The Larynx
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Surface Anatomy: The Larynx

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Questions and Answers

What is the origin of the thyroarytenoid muscle?

  • Vocal ligament
  • Epiglottis
  • Lower half of the angle of the thyroid cartilage and from the middle cricothyroid ligament (correct)
  • Thyroid lamina

    • Which muscle helps close the laryngopharyngeal opening?

  • Thyroepiglotticus (correct)
  • Cricothyroid
  • Posterior cricoarytenoid
  • Vocalis

    • What is the function of the vocalis muscle?

  • Draws the arytenoid cartilages forward towards the thyroid
  • Relaxes the vocal folds
  • Tenses the anterior part and relaxes the posterior part of the vocal ligament (correct)
  • Opens the rima glottidis

    • Which nerve supplies the thyroarytenoid muscle?

    <p>Recurrent laryngeal nerve</p> Signup and view all the answers

    What is the name of the opening that connects the pharynx and the larynx?

    <p>Laryngeal inlet</p> Signup and view all the answers

    Which muscle is involved in the tension and relaxation of the vocal cords?

    <p>Vocalis</p> Signup and view all the answers

    What is the insertion of the thyroepiglotticus muscle?

    <p>Epiglottis</p> Signup and view all the answers

    What is the function of the posterior cricoarytenoid muscle?

    <p>Opens the rima glottidis</p> Signup and view all the answers

    Which muscle is involved in the rotation of the arytenoid cartilages?

    <p>Lateral cricoarytenoid</p> Signup and view all the answers

    What is the action of the thyroarytenoid muscle?

    <p>Relaxes the vocal folds</p> Signup and view all the answers

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