Capillaries cover the alveoli in order to maximize the area for gas exchange between the lungs and the blood. Carbon dioxide is released from the blood through the capillary walls and into the alveoli, while oxygen is picked up from the alveoli through the capillary walls and into the blood.
The alveoli are tiny sacks in the lungs where the exchange of oxygen and carbon dioxide with the blood occurs. The more capillaries there are the more area of blood is available for the exchange.
because it is good
It is very important that they cover you alveoli
The tiny blood vessels that surround the alveoli arecalled alveolar capillaries
the blood surround Alveoli in order to gas exchange between the Alveoli and red blood cell.
In the alveoli
The humorus
These are called the alveoli capillaries.
Oxygen passes into the capillaries that surround the alveoli. The thin walls of the capillaries make this diffusion easier.
Alveoli.
It diffuses into the blood capillaries surrounding the alveoli.
alveoli
Alveoli
Alveoli