<prompt> Recurrent laryngeal nerve supply all the intrinsic muscles of the larynx EXCEPTThyroepiglotticPosterior cricoarytenoidCricothyroidThyroarytenoid  <response>: C. i.e. Cricothyroid 260, 275 - Dhingra 4thMUSCLES OF LARYNXINTRINSIC MUSCLES EXTRINSIC MUSCLESa Acting on vocal cords Abductors - Posterior cricoarytenoids Adductors - Lateral cricoarytenoid Interarytenoid Transverse arytenoids Thyro arytenoids external part Tensors - Cricothyroid vocalis Internal part of thyroarytenoidb Acting on laryngeal inletOpeners of laryngeal inletThyroepiglotticClossers of the laryngeal inletInter arytenoids Aryepiglottica Elevators - stylopharyngeusPrimary- Salpingopharyngeous- Palatopharyngeus- ThyrohyoidSecondary- Mylohyoid- Digastric- Stylohyoid- Geniohyoidb Depressors- Sternohyoid- Sternothyroid- Omohyoid All the muscles of the larynx which move the vocal cord Abductors, adductors or tensors are supplied by the recurrent laryngeal nerve EXCEPT the cricothyroid muscle Cricothyroid is supplied by external laryngeal nerve - a branch of superior laryngeal nerve Topical mitomycin C is useful to aid in the treatment of surgery for laryngotracheal stenosis 