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 Closure of glottis is by all except and explain in detail?
Posterior cricoarytenoid acts by abducting vocal cords. Lateral cricoarytenoid and Thyroarytenoids are adductors of vocal cords. Whereas Cricothyroid is tensor of vocal cords. Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 320