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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
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
Inhaled oxygen diffuses through the walls of the alveoli in the lungs into the surrounding capillaries, where it binds to hemoglobin in red blood cells for transport to tissues in the body.
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)
The smallest blood vessels are the capillaries.
Oxygen is inhaled through the mouth and nose, travels through the trachea and bronchi and into the lungs. From there it goes into the alveoli and diffuses through the capillaries. It attaches to haemoglobin in the blood.
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.
Arterioles take blood from the arteries to the capillaries. Venules take blood from the capillaries to the veins.