Gas Exchange in the Lungs. In the lungs, oxygen and carbon dioxide (a waste product of body processes) are exchanged in the tiny air sacs (alveoli) at the end of the bronchial tubes. When a person inhales, oxygen moves from the alveoli to the surrounding capillaries and into the bloodstream.
Also, how does pulmonary gas exchange occur?
The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
How does gas exchange occur between the lungs and the blood?
Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
What is pulmonary respiration?
Respiration is Gas Exchange. While pulmonary ventilation is the process by which oxygen enters and carbon dioxide exits the alveoli, respiration is the process by which oxygen and carbon dioxide diffuse in and out of the blood. External respiration refers to gas exchange across the respiratory membrane in the lungs.