Advanced Vocal Cords Quiz

Q1. Which layered region of the vocal fold is especially important for mucosal vibration during phonation?

• Deep surface of the epiglottis
• Thyrohyoid membrane
• Superficial lamina propria, or Reinke space
• Cricoid perichondrium

Q2. How do the intermediate and deep layers of the lamina propria relate to the vocal ligament?

• They form the epiglottic petiole
• They form the cricoarytenoid joint capsule
• They form the vestibular ligament
• They form the vocal ligament

Q3. Why can edema in Reinke space alter the voice substantially?

• It denervates the cricothyroid muscle
• It changes the mass and vibration of the vocal fold cover
• It fixes the cricoarytenoid joint directly
• It closes the esophagus

Q4. What finding is most typical of a unilateral recurrent laryngeal nerve lesion affecting the vocal fold?

• Bilateral loss of cricothyroid function only
• Complete tongue paralysis
• Isolated loss of supraglottic sensation
• Ipsilateral vocal fold weakness or immobility with hoarseness

Q5. Why can bilateral recurrent laryngeal nerve injury become an airway emergency?

• Both vocal folds may fail to abduct adequately, narrowing the airway
• Both vocal folds become permanently maximally abducted
• The trachea becomes completely rigid
• The epiglottis becomes denervated and disappears

Q6. Why does an external superior laryngeal nerve lesion impair high-pitched phonation?

• Loss of arytenoid cartilage support shortens the trachea
• Loss of cricothyroid function reduces vocal fold tension
• Loss of posterior cricoarytenoid function prevents all adduction
• Loss of vocal fold sensation causes tongue weakness

Q7. Which structural arrangement directly transmits arytenoid movement to each vocal fold?

• Attachment of the vestibular ligament to the muscular process
• Attachment of the vocal ligament to the arytenoid vocal process
• Attachment of the epiglottis to the vocalis
• Fusion of the vocal fold to the cricoid lamina

Q8. Why does posterior cricoarytenoid paralysis particularly threaten respiration?

• It eliminates all laryngeal sensation
• It removes the only active mechanism for vocal fold abduction
• It paralyzes the diaphragm
• It removes the only muscle that adducts the vocal folds

Q9. How does the body-cover organization of the vocal fold support phonation?

• Only the arytenoid cartilage vibrates
• A pliable cover vibrates over deeper supportive ligament and muscle
• The entire fold is rigid cartilage that vibrates as one block
• The vestibular ligament produces the normal mucosal wave

Q10. Which statement best integrates vocal fold anatomy and function?

• Vocal fold position is controlled exclusively by extrinsic neck muscles
• The vocal folds are fixed ligaments with no muscular control
• The true vocal folds are layered, mobile structures whose attachments and intrinsic muscle control permit breathing, closure, and sound production
• The true vocal folds consist only of respiratory epithelium and cartilage