This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Larynx, Subject name: Anatomy
Abductor of vocal cords is - 
Select and explain. 
A. Thyroarytenoid, B. Lateral cricoarytenoid, C. Posterior cricoarytenoid, D. Cricothyroid
C: Posterior cricoarytenoid
Answer: C: Posterior cricoarytenoid 
Explanation: Ans. is 'c' i.e., Posterior cricoarytenoid Abductors : Adductors :Posterior cricoarytenoidLateral cricoarytenoidInterarytenoid (transverse arytenoid)Thyroarytenoid (external part)CricothyroidTensors :CricothyroidVocalis (internal part of thyroarytenoid)