Cricoarytenoid posterior muscles :-

Cricoarytenoid posterior muscles :-

Muscle details :-

small, paired muscles that extend from the posterior cricoid cartilage to the arytenoid cartilages in the larynx.

Origin :-

posterior part of the cricoid .

Insertion :-

muscular process of the arytenoid cartilage .

Nerve supply :-

recurrent laryngeal branch of the vagus .

Action :-

abducts and laterally rotates the cartilage, pulling the vocal ligaments away from the midline and forward and so opening the rima glottidis .

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Physiotherapist , Samarpan Physiotherapy Clinic, Vastral, Nirant Cross Road, Ahmedabad

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