To push the air in and out, your diaphragm and other muscles help create pressure inside your chest. Your lungs take in about 1.5 gallons (gl) or 6 liters (L) of air per minute. This large surface area is necessary to process the huge amounts of air involved in breathing and getting oxygen to your lungs. The alveoli cover a surface of more than 1,399 feet (ft) or 130 square meters (m2). These tiny alveoli structures, taken together, form a very large surface area to do the work of your breathing when you’re resting and exercising.
The alveoli pick up the incoming energy (oxygen) you breathe in and release the outgoing waste product (carbon dioxide) you exhale.Īs it moves through blood vessels (capillaries) in the alveoli walls, your blood takes the oxygen from the alveoli and gives off carbon dioxide to the alveoli. pumping blood through your lungs (perfusion)Īlthough tiny, the alveoli are the center of your respiratory system’s gas exchange.oxygen-carbon dioxide exchange (diffusion).moving air in and out of your lungs (ventilation).
There are three overall processes involved in your breathing: Share on Pinterest Illustration by Paul Lawrence
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