RESPIRATORY SYSTEM
ALVEOLI
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Oxygen and carbon dioxide leaves the lungs.
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I don’t know honestly.
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Lungs absorb carbon dioxide into the blood & remove oxygen from the lungs.
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lungs absorb oxygen into the blood & remove carbon dioxide from the lungs.
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Detailed explanation-1: -Oxygen breathed in from the air passes through the alveoli and into the blood and travels to the tissues throughout the body. Carbon dioxide travels in the blood from the body’s tissues and passes through the alveoli to be breathed out.
Detailed explanation-2: -Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.
Detailed explanation-3: -Every time you breathe in, oxygen from the air you inhale passes through the thin walls of the alveoli into the surrounding capillaries, where red blood cells pick it up using a protein called hemoglobin.
Detailed explanation-4: -Each air sac is surrounded by a network of fine blood vessels (capillaries). The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell.