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Surface Anatomy: The Larynx

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Questions and Answers

What is the origin of the thyroarytenoid muscle?

Vocal ligament

Epiglottis

Lower half of the angle of the thyroid cartilage and from the middle cricothyroid ligament (correct)

Thyroid lamina

Which muscle helps close the laryngopharyngeal opening?

Thyroepiglotticus (correct)

Cricothyroid

Posterior cricoarytenoid

Vocalis

What is the function of the vocalis muscle?

Draws the arytenoid cartilages forward towards the thyroid

Relaxes the vocal folds

Tenses the anterior part and relaxes the posterior part of the vocal ligament (correct)

Opens the rima glottidis

Which nerve supplies the thyroarytenoid muscle?

Recurrent laryngeal nerve Signup and view all the answers

What is the name of the opening that connects the pharynx and the larynx?

Laryngeal inlet Signup and view all the answers

Which muscle is involved in the tension and relaxation of the vocal cords?

Vocalis Signup and view all the answers

What is the insertion of the thyroepiglotticus muscle?

Epiglottis Signup and view all the answers

What is the function of the posterior cricoarytenoid muscle?

Opens the rima glottidis Signup and view all the answers

Which muscle is involved in the rotation of the arytenoid cartilages?

Lateral cricoarytenoid Signup and view all the answers

What is the action of the thyroarytenoid muscle?

Relaxes the vocal folds Signup and view all the answers