We inhale air from the atmosphere and air is a mixture of gasses but does our body filter out other gasses if no then what happens to the rest of the air? Does our cells take only oxygen and give out Carbon dioxide
Answers
when we inhale air all gases enter our lungs
but
only oxygen is transported to the pulmonary vien and CO2 is transported from pulmonary artery to our lungs and the air is exhaled out...
hope it helps
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Breathing is the processes of delivering oxygen to where it is needed in the body and remove carbon dioxide.
By volume, air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.
When you breathe in - or inhale, your lungs expand, air is sucked in through your nose or mouth. The air travels down your windpipe and into your lungs. After passing through your bronchial tubes, the air finally reaches and enters the alveoli (air sacs).
Through the very thin walls of the alveoli, oxygen from the air passes to the surrounding capillaries (blood vessels). A red blood cell protein called hemoglobin helps move oxygen from the air sacs to the blood. A very, very little nitrogen simply dissolves in the blood and into any cell/tissue. This is inert, our bodies have no ability to react chemically with that nitrogen.
At the same time, carbon dioxide-nitrogen mix moves from the capillaries into the air sacs. The gas has traveled in the bloodstream from the right side of the heart through the pulmonary artery.
Oxygen-rich blood from the lungs is carried through a network of capillaries to the pulmonary vein. This vein delivers the oxygen-rich blood to the left side of the heart. The left side of the heart pumps the blood to the rest of the body. There, the oxygen in the blood moves from blood vessels into surrounding tissues.
When you breathe out - or exhale, the space in the chest cavity gets smaller, air rich in carbon dioxide and nitrogen is forced out of your lungs and windpipe, and then out of your nose or mouth.