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Anatomy Pharyngeal Arches 335a6806

All of the following muscles are derived from 6th brachial arch EXCEPT:

A
Lateral cricoarytenoid
B
Posterior cricoarytenoid
C
Interarytenoid
D
Cricothyroid
High-Yield Explanation
Ans. (d) CricothyroidRef: LB. Singh 9th ed. /116* Cricothyroid muscle is derived from fourth branchial arch. It is the only intrinsic laryngeal muscle not derived from 6th branchial arch* Nerve supply: Superior laryngeal nerve

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