<prompt> Type I thyroplasty is for -Vocal cord medializationVocal cord lateralizationVocal cord shorteningVocal cord lengthening  <response>: Type 1: Medial displacement of vocal cord done by injection of gel foamTeflon pasteType 2: Lateral displacement of the cord done to improve the airway.Type 3: Shortening relax the cord, to lower the pitch gender transformation from female to male.Type 4: Lengthening tightening the cord, to elevate the pitch gender transformation from male to female. 