Trachea – The primary function of your trachea is to transport air into and out of your lungs. It provides a reliable pathway for oxygen to enter your body because it is a stiff, flexible tube.

Lungs – Your lungs are a part of the respiratory system, which is a collection of organs and tissues that work together to allow you to breathe. The primary function of the respiratory system is to move fresh air into your body while removing waste gases.

Larynx – your larynx is a part of the respiratory system. It's a hollow tube that transports air from your throat (pharynx) to your trachea and then to your lungs. It also houses your vocal cords and is necessary for human speech, so it's also known as the voice box.