Larynx
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Questions and Answers

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  • Paris (correct)
  • London
  • Berlin
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Flashcards

The superior laryngeal nerve comes from which cranial nerve?

CN X

The superior laryngeal nerve divides into...

External and Internal Laryngeal nerves

External laryngeal nerve is motor to...

Cricothyroid muscle

Internal laryngeal nerve is sensory to...

Larynx SUPERIOR to vocal folds

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The recurrent laryngeal nerve comes from what cranial nerve?

Vagus (CN X)

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The recurrent laryngeal nerve is motor to...

All laryngeal muscles EXCEPT cricothyroid

  • Lateral cricoarytenoid
  • Posterior cricoarytenoid
  • Vocalis muscle
  • Oblique arytenoid
  • Transverse arytenoid
  • Thyroarternoid
  • Thyroepiglottic
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The larynx mucosa inferior to the vocal folds receives SENSORY innervation from what nerve?

Recurrent laryngeal nerve

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T or F: The vocal fold mucosa is innervated by the recurrent layngeal nerve

FALSE - The vocal fold mucosa is innervated by an overlap between BOTH internal laryngeal and recurrent laryngeal nerves

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Which three muscles help with phonation?

  1. Cricothyroid
  2. Thyroarytenoid
  3. Vocalis
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The following muscle tightens vocal ligaments to RAISE voice pitch

Cricothyroid muscle

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The following muscle when contracted causes vocal ligaments to slacken and LOWERS voice pitch

Thyroarytenoid muscle

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Vocalis muscle

Part of the thyroarytenoid muscle and helps make adjustments to the vocal ligaments

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Which two muscles aid in respiration?

  1. Lateral cricoarytenoid
  2. Posterior cricoarytenoid
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Lateral cricoarytenoid muscle

ADDucts the vocal ligaments --> CLOSES Rima glottides

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Posterior cricoarytenoid muscle

ABduct the vocal ligament --> OPEN rima glottides

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The following four muscles close the laryngeal aditus

  1. Oblique Arytenoid muscle
  2. Transverse Arytenoid muscle
  3. Aryepligottic muscle
  4. Thyroepiglottic muscle
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