You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is In thyroplasty type 2, vocal cord is: and explain in detail?
Isshiki divided thyroplasty procedures into 4 categories to produce functional alteration of vocal cords: Type 1 : Medial displacement of vocal cord (done by injection of gel foam/Teflon paste) Type 2 : Lateral displacement of cord (done to improve the airway) Type 3 : Shoening (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)