Tensors of vocal cord are
Intrinsic muscles acting on vocal cords: Abductors: Posterior cricoarytenoid Adductors: Lateral cricoarytenoid, lnterarytenoid (transverse arytenoid) Thyroarytenoid (external pa) Tensors: Cricothyroid, Vocalis (internal pa of thyroarytenoid) Intrinsic muscles acting on laryngeal inlet: Openers of laryngeal inlet: Thyroepiglottic (pa of thyroarytenoid) Closers of laryingeal inlet: Interarytenoid (oblique pa), Aryepiglottic (posterior oblique pa of interarytenoids)
Posterior cricothyroid, internal interarytenoid
Lateral cricothyroid, internal interarytenoid 1
Thyroarytenoid, internal interarytenoid
Cricothyroid and internal thyroarytenoid