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Do alveoli have C shaped rings around them?
Alveoli are surrounded by capillaries so that the oxygen can diffuse into the blood and carbon dioxide can diffuse out. I think it depends on the shape of the alveoli to the path of the capillary.
Which way would O2 and CO2 diffuse during internal respiration?
O2 would diffuse into the cells, and CO2 would diffuse into the systemic capillaries.
What are the two gases that diffuese the alveoli and the capillaries?
CO2 and O2
How does alveoli help two gases diffuse quickly into and out of the blood?
They have capillaries close to their surfaces.
What does the alveoli and blood capillaries have in common?
they are both one cell thick to let the gases diffuse
Where in the human body is o2 and co2 exchanged?
Human gas-exchange occurs in the lungs. Once air enters the lungs, diffusion of O2 and CO2 occurs in the alveoli.
What is relationship of the alveoli to capillaries?
The alveoli branch from the bronchioles and are responsible for gas exchange with the pulmonary capillaries. They come in close contanct with the capillaries so the exchange of O2 and Co2 can occur rapidly and easily.
O2 enters the capillaries and ----- from the capillaries passes in to the lungs?
Carbon dioxide is produced as a waste product of respiration, and is taken in the bloodstream to the capillaries outside the lungs, where the CO2 diffuses into the alveoli of the lungs.
Does carbon dioxide diffuse from the capillaries to the alveoli?
yes while oxygen then diffuses into the blood, and carbon dioxide diffuses out. it's a chain
Why are lung alveoli covered with blood capillaries?
The Alveoli in the lungs have a very good capillary network because this is where gas exchange occurs. There needs to be sufficient area to allow the red blood cells to expel their carbon dioxide and to receive oxygen across the capillary and alveoli walls.
What are alveoli surrounded by?
the blood surround Alveoli in order to gas exchange between the Alveoli and red blood cell.
Is o2 concentration greater in the pulmonary capillaries or alveoli?
In the alveoli
