Which of the airways are involved in the formation of sounds? by what structures?

Sounds are formed due to the presence of the vocal cords. But they themselves are not able to create any sound without the presence of a stream of air. This is mainly exhaust air. It leaves the lungs through the trachea and enters the middle of the pharynx where the vocal cords are located. The timbre of the voice depends on the structure of the vocal cords. They are influenced by sex hormones, since a man’s voice is rough and begins to break during puberty, when the body has a high concentration of sex hormones such as testosterone.