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Questions and Answers
Which cartilage forms a complete ring around the airway?
Which cartilage forms a complete ring around the airway?
What is the function of the true vocal cords (TVC)?
What is the function of the true vocal cords (TVC)?
Which ligament connects the thyroid cartilage to the hyoid bone?
Which ligament connects the thyroid cartilage to the hyoid bone?
What is the anterior union of the two laminae of the thyroid cartilage called?
What is the anterior union of the two laminae of the thyroid cartilage called?
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Where is the vocal process located?
Where is the vocal process located?
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What is the function of the quadrangular membrane?
What is the function of the quadrangular membrane?
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Which joint allows for rotation and gliding of the arytenoid cartilage?
Which joint allows for rotation and gliding of the arytenoid cartilage?
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What is the attachment point of the vocal ligament?
What is the attachment point of the vocal ligament?
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What is the function of the false vocal cords (vestibular fold)?
What is the function of the false vocal cords (vestibular fold)?
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Which cartilage is attached inferiorly to the thyroid cartilage?
Which cartilage is attached inferiorly to the thyroid cartilage?
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Which muscle of the larynx is the primary tensor of the true vocal cord?
Which muscle of the larynx is the primary tensor of the true vocal cord?
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Which muscle of the larynx is the only abductor of the glottis?
Which muscle of the larynx is the only abductor of the glottis?
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Which muscle of the larynx is responsible for approximating (adducting) and closing the glottis?
Which muscle of the larynx is responsible for approximating (adducting) and closing the glottis?
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Which muscle of the larynx is the antagonist to the cricothyroid muscles?
Which muscle of the larynx is the antagonist to the cricothyroid muscles?
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Which artery supplies the superior part of the larynx?
Which artery supplies the superior part of the larynx?
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Which artery supplies the inferior part of the larynx?
Which artery supplies the inferior part of the larynx?
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Which nerve provides motor innervation to the cricothyroid muscle?
Which nerve provides motor innervation to the cricothyroid muscle?
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Which nerve provides sensory innervation above the true vocal cords?
Which nerve provides sensory innervation above the true vocal cords?
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Which nerve provides motor innervation to all the laryngeal muscles except the cricothyroid muscle?
Which nerve provides motor innervation to all the laryngeal muscles except the cricothyroid muscle?
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Which nerve provides sensory innervation below the true vocal cords?
Which nerve provides sensory innervation below the true vocal cords?
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Study Notes
Larynx Structure
- The cricoid cartilage forms a complete ring around the airway.
- The anterior union of the two laminae of the thyroid cartilage is called the laryngeal prominence.
- The vocal process is located on the arytenoid cartilage.
- The thyroid cartilage is attached inferiorly to the cricoid cartilage.
- The vocal ligament attaches to the vocal process of the arytenoid cartilage.
Laryngeal Functions
- The true vocal cords (TVC) produce sound and vibrate during phonation.
- The quadrangular membrane is involved in the formation of the TVC and the vestibular fold.
- The false vocal cords (vestibular fold) provide additional protection to the airway and help to regulate airflow.
- The cricothyroid joint allows for rotation and gliding of the arytenoid cartilage.
Laryngeal Muscles
- The cricothyroid muscle is the primary tensor of the true vocal cord.
- The posterior cricoarytenoid muscle is the only abductor of the glottis.
- The lateral cricoarytenoid, interarytenoid, and thyroarytenoid muscles are responsible for approximating (adducting) and closing the glottis.
- The thyroarytenoid muscle is the antagonist to the cricothyroid muscle.
Laryngeal Innervation and Blood Supply
- The superior laryngeal artery supplies the superior part of the larynx.
- The inferior laryngeal artery supplies the inferior part of the larynx.
- The external laryngeal nerve provides motor innervation to the cricothyroid muscle.
- The internal laryngeal nerve provides sensory innervation above the true vocal cords.
- The recurrent laryngeal nerve provides motor innervation to all the laryngeal muscles except the cricothyroid muscle.
- The recurrent laryngeal nerve provides sensory innervation below the true vocal cords.
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Description
Test your knowledge on the functions and cartilages of the larynx with this quiz. Learn about phonation, respiration, and swallowing as well as the major cartilages of the larynx. Challenge yourself and expand your understanding of this important part of the respiratory system.
