The key larynx perform is always to conduct air into the trachea; it also acts to circumvent food items from entering the trachea too. This is achievable as the larynx has a flap on its upper component called the epiglottis that's shut throughout swallowing and open in the course of breathing. https://www.theorthopaedicandpainpractice.com/treatment-for-neck-pain-headaches/