Anatomy of the Larynx: 3D Model Quiz
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Questions and Answers

What is the laryngeal prominence also known as?

  • Thyroid angle
  • Cricoid cartilage
  • Vocal folds
  • Adam's apple (correct)
  • At what level are the vocal folds located?

  • At the level of the middle of the laryngeal prominence (correct)
  • At the level of the thyroid cartilage
  • Below the cricoid cartilage
  • Above the laryngeal prominence
  • What can be felt inferior to the laryngeal prominence at the level of the C6 vertebra?

  • Cricoid cartilage (correct)
  • Vocal folds
  • Cricothyroid ligament
  • Thyroid cartilage
  • What is the site for a needle cricothyrotomy or coniotomy?

    <p>Cricothyroid ligament</p> Signup and view all the answers

    Why does the fingertip sink in after passing over the arch of the cricoid cartilage?

    <p>Due to the arch of the cartilage projecting farther anteriorly than the rings of the trachea</p> Signup and view all the answers

    What is palpable and frequently visible, formed by the meeting of the laminae of the thyroid cartilage at an acute angle in the anterior midline?

    <p>Laryngeal prominence (Adam's apple)</p> Signup and view all the answers

    Which landmark indicates the level of the C6 vertebra?

    <p>Cricoid cartilage</p> Signup and view all the answers

    What procedure involves an incision through the skin and cricothyroid membrane and insertion of a small tracheostomy tube into the trachea?

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

    What is the normal consistency of a perfectly normal thyroid gland?

    <p>Consistency of muscle tissue</p> Signup and view all the answers

    Which artery primarily supplies the anterosuperior aspect of the thyroid gland?

    <p>Superior thyroid artery</p> Signup and view all the answers

    In what percentage of people is a small thyroid ima artery present?

    <p>10%</p> Signup and view all the answers

    What is the purpose of cricothyrotomy in extreme emergency cases?

    <p>To establish an airway</p> Signup and view all the answers

    Which muscle covers the inferior part of the trachea in infants and children?

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

    What does a transverse incision through the skin of the neck and anterior wall of the trachea establish in patients with upper airway obstruction or respiratory failure?

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

    Which gland lies immediately inferior to the cricoid cartilage and extends approximately 1.25 cm on either side of the midline?

    <p>Thyroid gland</p> Signup and view all the answers

    What are palpable and visible, especially when the neck is flexed?

    <p>Spinous processes of C6 and C7 vertebrae</p> Signup and view all the answers

    What makes it easy to cut through its posterior wall and damage the esophagus in infants?

    <p>Small and soft trachea</p> Signup and view all the answers

    Which vessel runs superomedially posterior to the carotid sheaths to reach the posterior aspect of the thyroid gland?

    <p>Inferior thyroid vein</p> Signup and view all the answers

    Which artery ensures the blood supply to the thyroid gland and provides potential collateral circulation between the subclavian and external carotid arteries?

    <p>Superior thyroid artery</p> Signup and view all the answers

    In approximately what percentage of people does the small unpaired thyroid ima artery arise from the brachiocephalic trunk?

    <p>10%</p> Signup and view all the answers

    Which veins drain the superior poles of the thyroid gland and accompany the superior thyroid arteries?

    <p>Superior thyroid veins</p> Signup and view all the answers

    Where do the middle thyroid veins drain into?

    <p>Internal jugular veins</p> Signup and view all the answers

    Which structure serves as the main inspiratory sphincter of the larynx when tightly closed?

    <p>Vocal folds</p> Signup and view all the answers

    What is the function of the vestibular folds?

    <p>Protective function</p> Signup and view all the answers

    Which nerve is at risk of injury during neck surgery near the inferior pole of the thyroid gland?

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

    What is the usual sign of unilateral recurrent nerve injury?

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

    What may occur as a result of bruising the recurrent laryngeal nerves during surgery or from pressure of accumulated blood and serous exudate after the operation?

    <p>Temporary aphonia</p> Signup and view all the answers

    What is the role of vocal folds in sound production?

    <p>Controlling sound production through audible vibrations</p> Signup and view all the answers

    Which structure makes up the vocal apparatus of the larynx along with rima glottidis?

    <p>Thyroid cartilage</p> Signup and view all the answers

    What can occur as a result of an injury to the recurrent laryngeal nerve?

    <p>Disturbance of phonation (voice production)</p> Signup and view all the answers

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