The muscle responsible for falsetto voice of puber phonia is: (A) Vocalis, (B) Thyroarytenoid, (C) Posterior cricoarytenoid, (D) Cricothyroid
Answer is D. Cricothyroid is the main tensor responsible for the falsetto voice in puberphonia. There is hyperkinetic function and spasm of cricothyroid muscle. Ref:- TB of ENT Hazarika; pg num:- 636