nothing carries it, it travels down your trachea or wind pipe
trachea
Air passes from the environment into the nose/mouth, through the nasopharynx and oropharynx, into the glottis, trachea, bronchi and its bifurcations, and into the alveoli of the lungs.
Air passes through your nose and mouth and into your windpipe, also known as the trachea, which carries the air to your lungs for breathing.
air sacs are in the lungs and when you breathe in blood carries it to the lungs.
The trachea, also known as the windpipe, is a tube that carries air from the mouth and nose to the lungs. Its main function is to provide a passageway for air to enter and exit the lungs, allowing for breathing to occur. The trachea is lined with cilia and mucus to help filter and clean the air before it reaches the lungs.
Humidity from the lungs carries respiratory waste out the nose and/or mouth during exhalation.
brochioles
When you breathe in through your mouth or nose, oxygen in the air travels down your windpipe (trachea) and enters your lungs. In your lungs, oxygen is transferred into the bloodstream via tiny blood vessels called capillaries, where it is then carried to all parts of your body to support cellular functions.
Trachea
from nose through airway in throat into lungs
bronchi carries o2 and co2. It carries air to the lungs.
Bronchi carries o2 and co2. It carries air to the lungs.