The main larynx purpose is to conduct air to the trachea; it also functions to prevent food items from moving into the trachea way too. This is achievable as the larynx includes a flap on its higher part known as the epiglottis which is closed during swallowing and open throughout respiration. https://www.theorthopaedicandpainpractice.com/treatment-for-neck-pain-headaches/