Laryngeal Anatomy Quiz

Which of the following cartilages is responsible for protecting the larynx and forming the anterior and lateral walls of the larynx?

• A. Arytenoid cartilage

• B. Thyroid cartilage

• C. Cricoid cartilage

• D. Corniculate cartilage

Which intrinsic laryngeal muscle is the only one responsible for vocal fold abduction?

• A. Lateral cricoarytenoid

• B. Transverse arytenoid

• C. Posterior cricoarytenoid

• D. Thyroarytenoid

What is the primary function of the epiglottis during swallowing?

• A. Elevate the larynx

• B. Cover the orifice of the larynx to prevent food from entering

• C. Vibrate to produce sound

• D. Tense the vocal folds to change pitch

Which cranial nerve supplies motor innervation to the cricothyroid muscle?

• A. Cranial nerve V (Trigeminal)

• B. Cranial nerve VII (Facial)

• C. Cranial nerve X (Vagus), external branch of the superior laryngeal nerve

• D. Cranial nerve XII (Hypoglossal)

What does the Bernoulli effect explain in the context of phonation?

• How subglottal pressure builds up for vocal fold vibration

• The cycle of opening and closing the vocal folds during phonation

• How increased velocity of air through a constriction decreases pressure, drawing the vocal folds together

• The impact of vocal fold mass and length on frequency

Which structure connects the arytenoid cartilages to the thyroid cartilage and allows the vocal folds to adjust tension?

• Hyoid bone

• Cricothyroid joint

• Thyrohyoid membrane

• Cricoarytenoid joint

Which of the following is NOT a biological function of the larynx?

• Producing the cough reflex to expel foreign substances

• Building subglottic pressure for physical tasks

• Vibrating to produce sound for speech

• Preventing food from entering the lungs

What is the significance of the mucosal wave in phonation?

• It controls the pitch of the voice

• It regulates the cycle of vocal fold vibration

• It allows the epithelium and lamina propria to slide for efficient vibration

• It strengthens the vocal fold tension

Which cranial nerve provides motor innervation to the intrinsic laryngeal muscles (excluding the cricothyroid)?

• Cranial nerve V (Trigeminal)

• Cranial nerve VII (Facial)

• Cranial nerve X (Vagus), recurrent laryngeal nerve

• Cranial nerve XII (Hypoglossal)

Which of the following muscles is NOT classified as an intrinsic laryngeal muscle?

• Thyroarytenoid

• Posterior cricoarytenoid

• Sternohyoid

• Lateral cricoarytenoid