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The part it plays in breathing is that when you inhale your rib muscles and diaphragm contract. This means that when you inhale your air pressure lowers and when you exhale your air pressure will risen. This happens because when you inhale your diaphragm will flatten and so will your rib muscles which means its contracting. When you exhale your diaphragm blows up like a balloon and your muscles are relaxing. That is why when you die you take your last breath, by exhaling, because your muscles have to relax because they are not able to work. That is the role air pressure plays in breathing.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoGiven air of standard composition and a constant metabolic rate, as pressure increases you will increase the ability of oxygen to transfer into blood. In this instance, oxygen will displace carbon dioxide as it normally does. Since it's the level of carbon dioxide in your blood that drives how fast you breath, NOT the level of oxygen, your respiration will slow. You can see this effect in a person that has acclimatized to a high altitude and then goes to a low altitude.
When pressure increases significantly, such as in a Scuba diver, it is possible for nitrogen to dissolve in the blood. This could become lethal if the diver surfaces rapidly causing a condition known as "the bends". The decrease in pressure causes nitrogen bubbles to form in the blood stream which could be life threatening if they form in critical arteries.
On the opposite side, when a pilot in a pressurized cockpit ejects at high altitude, he will quickly go into an atmosphere of much lower pressure. At air pressure decreases, oxygen loses it's ability to cross into the blood from the lungs. Above 25,000 feet, this can quickly lead to death through hypoxia. High altitude fighter pilots that eject will get high pressure, high concentration oxygen forced into their lungs until they've descended to a lower altitude.
Wiki User
∙ 14y agoBreathind depnds on air pressure because when the air pressure is low you have to inhale and while the airpressure is high you exhale
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more than 40-50 times
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Yes
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ant affect brest milk
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Air-breathing animals do not return to breathing water.
