What is perflubian? wrong spelling. A liquid when oxygenated you can breath in it like air.?
826505
Perflurocarbon, maybe? There's one called 'Decalin' that can be breathed by animals in a liquid form.  Or maybe "Perflubron"? That's another breathable liquid that is "similar to plastic teflon. This liquid carries oxygen and carbon dioxiode just as well as air and does not mix with water. Today, Perflubron is only used in medical precedures such as clearing congested lungs and as a blood substitute during surgery. A unique characteristic about this liquid is that it carries the same amount of oxygen as the amount of oxygen in the air in the room it is in."
645144
you could breathe through a tube down as deep as perhaps one atmosphere.  beyond that the surrounding water pressure on your chest would prohibit you from taking a breath from surface air.
103922
Oxygen breathed into the lungs diffuses into the alveoli, and then passes through into the  capillary walls. Here it turns into oxyhaemoglobin. Carbon dioxide is carried by blood into the alveoli and is breathed out of the lungs.\n\nGases diffuse along pressure gradients. In other words, gases spread from high concentration areas to low-concentration areas.\n\nThe blood in the capillaries arriving at the alveoli is low in oxygen and high in carbon dioxide. Air in the alveoli is high in oxygen and low in carbon dioxide. \n\nTherefore oxygen diffuses into the blood (attaching itself to the haemoglobin), and carbon dioxide diffuses into the alveoli, where it is breathed out.\n\nThe reverse process occurs at the capillaries that surround the muscle fibres
308322
Lung is a special organ which allows gas exchange. Air passes through trachea, bronchi, bronchioles and finally alveoli. Oxygen will diffuse form the alveoli into the blood plasma whereas the diffusion of carbon dioxide occurs in opposite direction.
634546
Blood contains hemoglobin, which enables blood to be transported through the body. The hemoglobin molecule has four sites for oxygen to attach.  When all four positions are filled, the hemoglobin is fully (100%) saturated.\n\nFor a person breathing room air, at not far above sea level, acceptable normal ranges are from 95 to 100 percent.
160254
"Any of a division (Tracheophyta) comprising green plants (as ferns and seed plants) with a vascular system that contains tracheids or tracheary elements."  \n\nTracheid: "a long tubular cell that is peculiar to xylem, functions in conduction and support, and has tapering closed ends and thickened lignified walls."\n\nKnow any more than you did before?
560650
haha the answer above me is funny...what what exactly do you want to know about it? theres a lot to do with respiration...theres inspiration where the air is taken in..this is caused by a contraction of the diaphragm..thens there structures like the epiglotis, trachea, pharynx...then the oxygen goes to your lungs..where gas exchange occurs in the alveoli's...this is done by some complicated process that i dont understand really..i didnt really pay attention during this part of physiology/biology class. haha. anyway, the oxygen is picked up by the pulmonary artery and goes to the rest of the body through the aorta...uhh, i can think of anything else..hope this helps!
1027380
Yes. Gas exchange does take place through human skin. There are tiny pores on our skin that actually breathe. Let me give you a practical example. Know why splashing water on your face makes you feel fresh? The reason is that water washes away the dirt and sweat from the pores making them clean and allowing the oxygen to pass freely. The breathing is somewhat less than 150ml/hr. The oxygen breathed by the pores makes feel active. it's just like the stomata under the plant leaves.
204472
The tiniest part of our lung is called alveolus (plural is alveoli). It is like an inflated balloon . The air in side this balloon is the fresh air we have inhaled.\n Now imagine your ten fingers covering an inflated balloon from all the sides. That is how the blood capillaries cover the alveoli . these blood capillaries have extremely thin wall through the oxygen, which is at a higher concentration in the fresh air of the alveoli, diffuses in the blood capillary. It is immediately picked up by the hemoglobin in the Red blood cells forming oxyhemoglobin  . It is the source of oxygen to our body. This is then taken to different parts of the body and given to them.\nAt the same time , CO2 collected from the body parts and brought to the alveoli by those vary capillaries diffuses in to the air of the alveoli because its concentration in the capillaries is greater. \nThe air in the alveoli is now stale air rich in CO2 and poor in O2. It is exhaled out.\nThus , the gaseous exchange can occur only on the surface of the alveoli . Their walls are as thin as the walls of a soap bubble, only that they are not fragile like soap bubble.\nIn the body muscles the gaseous exchange occurs in the same fashion but between the capillaries.
619312
it goes into your lungs and then straight into your blood stream from there.  how do you think oxygen gets in your blood??
467845
how indepth do you want this?\n\nbasically caused by a pressure differential in your lungs (the diaphragm inflates the lungs)...the oxygen molecules are forced through alveoli (sacs) into the bloodstream because fo this pressure differential...at the same time...Carbon Dioxide flows in the opposite direction from the blood to teh lungs to be exhaled...the oxygen attaches itself to hemoglobin..which is found in the red blood cells...and is then transported throughout the body by the heart (arteries pump blood away from the heart to teh body..veins take the blood back)\n\nhope thats good enough lol
918018
It just is, means it's getting the oxygen and blood flowing through it that it needs to keep operating. kinda like gas in a car, if there's enough flowing it'll run if there isn't enough it won't run.
1040869
yes frozen oxygen exists as a liquid.
237327
it happens , the partial perassure of o2 is less in cells than in hemaglobin so it diffusses in to cells frm hemoglbin
385841
You can learn a lot about breathing from the article about it on Wikipedia.  The link is listed in the Source section.\n\nHere's part of the entry:\n\n"Breathing is only part of the process of delivering oxygen to where it is needed in the body. Breathing in, or inhaling, is usually an active movement, with the contraction of chest and diaphragm muscles needed. At rest, breathing out, or exhaling, is normally a passive process powered by the elastic recoil of the chest, similar to a deflating balloon. The process of gas exchange occurs in the alveoli by passive diffusion of gasses between the alveolar gas and the blood passing by in the lung capillaries. Once in the blood, the heart powers the flow dissolved gasses around the body in the circulation."\n\nSo the muscles in the chest and the diaphragm that brings the air in, while exhaling is just the lungs deflating.
985658
So living things can breath. Without air pressure we would not be able to breath.The air is thinner up in the atmosphere.Down here the air is Thicker and more dense then up there that's how we can live,with air pressure.With too much pressure or to little we could die.With too much pressure we could implode. Or too little pressure we could explode (I don't know how that would be possible but I think it's right) .That sounds funny that we would explode with too little
457871
Asphyxia is where one person's air supply is being choked off or in the process of BEING choked off. (Not a good thing!)\n\nPeriodic breathing is a condition originating from an earlier medical or physical problem in that person's life where they couldn't breathe normally like they wanted to. (Preemies are a good example. Underdeveloped lungs shortens their ability to breathe normally. So they had to adapt.)\n\nMost people take regular and deep breaths. Shallow breathing is common.