Your airways deliver air to your lungs. Your airways are a complicated system that includes your:

Mouth and nose: Openings that pull air from outside your body into your respiratory system.
Sinuses: Hollow areas between the bones in your head that help regulate the temperature and humidity of the air you inhale.
Pharynx (throat): Tube that delivers air from your mouth and nose to the trachea (windpipe).
Trachea: Passage connecting your throat and lungs.
Bronchial tubes: Tubes at the bottom of your windpipe that connect into each lung.
Lungs: Two organs that remove oxygen from the air and pass it into your blood.
From your lungs, your bloodstream delivers oxygen to all your organs and other tissues.

Air is delivered to your lungs through your airways. Your airways are a complex system that contains the following components:

The mouth and nose are the openings that allow air to enter your respiratory system from the outside.
Sinuses are hollow spaces between your skull’s bones that assist regulate the temperature and humidity of the air you breathe.
The trachea receives air from your mouth and nose through the pharynx (throat) (windpipe).
Trachea: The tube that connects your throat to your lungs.
Bronchial tubes are tubes that link the bottom of the windpipe to each lung.
Lungs are two organs that take oxygen from the air and transport it to your bloodstream.
Your bloodstream transports oxygen from your lungs to all of your organs and tissues.