EMBRYOLOGY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which portion of the larynx is responsible for keeping the airway open?
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vocal cords
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cartilage
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epiglottis
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None of the above
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Explanation:
Detailed explanation-1: -Muscles of the larynx These muscles function to elevate the anterior arch of the cricoid cartilage and depress the posterior portion of the thyroid cartilage lamina. This produces tension and elongation of the vocal cords, resulting in higher-pitch phonation.
Detailed explanation-2: -The cricothyroid together with the posterior cricoarytenoid accentuates this opening. The larynx is also opened by the geniohyoid, mylohyoid, sternothyroid, and middle constrictor. The thyrohyoid, cricothyroid, sternohyoid, and inferior constrictor close the laryngeal airway.
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