Abductor of the vocal cord is: (Repeat)
Correct Answer: Posterior cricoarytenoid
Description: Ans: C (Posterior cricoarytenoid) Ref: Diseases of the Ear Nose and Throat by PL Dhingra 5th edn .2010. Page 300Explanation:Muscles of the larynx are divided into intrinsic and extrinsic groupsIntrinsic muscles of the larynx areThose acting on the vocal cordAbductors - Posterior cricoarytenoidAdductors - Lateral cricoarytenoidInterarytenoidThyroarytenoidTensors - External - CricothyroidInternal - VocalisThose acting on the laryngeal inletOpening the inlet - Thyroepiglottis (Part of thyroarytenoid)Closing the inlet -Interarytenoid (oblique part)Aryepiglottic (posterior oblique part of interarytenoid)Extrinsic muscles of the larynx ElevatorsPrimary-Stylopharyngeus, Salphingophar- yngeus, Palatopharvngeus & ThyrohyoidSecondary - Mylohyoid, Stylohyoid, Digastric, GeniohyoidDepressorsSternohyoid, sternothyroid, omohyoid
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