oxygen:)
The alveoli are the sites of respiration: the oxygen in them provided by the inhaled air diffuses into the blood cells that flow through the capillaries. Carbon dioxide diffuses out of the blood and into the alveoli so it can be exhaled. The capillaries provide a way for the blood to reach the alveoli. Hope this helps
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The alveoli are the sites of respiration: the oxygen in them provided by the inhaled air diffuses into the blood cells that flow through the capillaries. Carbon dioxide diffuses out of the blood and into the alveoli so it can be exhaled. The capillaries provide a way for the blood to reach the alveoli. Hope this helps
Oxygen enters the blood through the process of diffusion in the lungs. In the alveoli, oxygen from inhaled air diffuses into the blood in the surrounding capillaries, where it binds to hemoglobin in red blood cells for transport to tissues throughout the body.
The smallest blood vessels are the capillaries.
The thin walls of the blood vessels are capillaries around the alveolar sacs that permit diffusion of gases in every single red blood cell with oxygen inhaled ... they are thinner to improve the pressure gradient to allow more O2 in the capillaries, because the pulmonary capillaries have the lowest blood pressure in the body (normally)
Inhaled oxygen will diffuse through the walls of the lungs. It will also diffuse through the walls of red blood cells so it can be carried all over the body.
Capillaries contain oxygenated blood.
Blood does not move faster through the capillaries. Blood flow is slowest in the capillaries.
Veins do not send blood to capillaries. They receive blood from capillaries. Arteries send blood to capillaries, in this case, specifically, hepatic arterioles.
The lungs are the primary organs that fill blood with oxygen. Oxygen from the air is inhaled into the lungs, where it moves into the bloodstream through tiny blood vessels called capillaries surrounding the lungs' air sacs.