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What mechanism allows oxygen to move into the alveoli of the long?
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What Would Happen if you didn't have an alveoli?
If you didn't have Alveoli than you wouldn't live very long. Alveoli allow oxygen to enter the bloodstream, so without them you'd die within the first few minutes of your life.
Where does oxygen into the blood and carbon dioxide pass out of the blood?
alveoli
Room air contains 21 percent oxygen-what amount is exhaled?
We breathe air that is 21 percent oxygen, and we require oxygen to live. So you might think that breathing 100 percent oxygen would be good for us -- but actually it can be harmful. So, the short answer is, pure oxygen is generally bad, and sometimes toxic. To understand why, you need to go into some detail … Your lungs are basically a long series of tubes that branch out from your nose and mouth (from trachea to bronchi to bronchioles) and end in little thin-walled air sacs called alveoli. Think of soap bubbles on the end of a straw, and you'll understand alveoli. Surrounding each alveolus are small, thin-walled blood vessels, called pulmonary capillaries. Between the capillaries and the alveolus is a thin wall (about 0.5 microns thick) through which various gases (oxygen, carbon dioxide, and nitrogen) pass. When you inhale, the alveoli fill with this air. Because the oxygen concentration is high in the alveoli and low in the blood entering the pulmonary capillaries, oxygen diffuses from the air into the blood. Likewise, because the concentration of carbon dioxide is higher in the blood that's entering the capillaries than it is in the alveolar air, carbon dioxide passes from the blood to the alveoli. The nitrogen concentration in the blood and the alveolar air is about the same. The gases exchange across the alveolar wall and the air inside the alveoli becomes depleted of oxygen and rich in carbon dioxide. When you exhale, you breathe out this carbon dioxide enriched, oxygen-poor air.
Is it dangerous to breathe pure oxygen?
We breathe air that is 21 percent oxygen, and we require oxygen to live. So you might think that breathing 100 percent oxygen would be good for us -- but actually it can be harmful. So, the short answer is, pure oxygen is generally bad, and sometimes toxic. To understand why, you need to go into some detail …Your lungs are basically a long series of tubes that branch out from your nose and mouth (from trachea to bronchi to bronchioles) and end in little thin-walled air sacs called alveoli. Think of soap bubbles on the end of a straw, and you'll understand alveoli. Surrounding each alveolus are small, thin-walled blood vessels, called pulmonary capillaries. Between the capillaries and the alveolus is a thin wall (about 0.5 microns thick) through which various gases (oxygen, carbon dioxide, and nitrogen) pass.When you inhale, the alveoli fill with this air. Because the oxygen concentration is high in the alveoli and low in the blood entering the pulmonary capillaries, oxygen diffuses from the air into the blood. Likewise, because the concentration of carbon dioxide is higher in the blood that's entering the capillaries than it is in the alveolar air, carbon dioxide passes from the blood to the alveoli. The nitrogen concentration in the blood and the alveolar air is about the same. The gases exchange across the alveolar wall and the air inside the alveoli becomes depleted of oxygen and rich in carbon dioxide. When you exhale, you breathe out this carbon dioxide enriched, oxygen-poor air.Now what would happen if you breathed 100 percent oxygen? In guinea pigs exposed to 100 percent oxygen at normal air pressure for 48 hours, fluid accumulates in the lungs and the epithelial cells lining the alveoli. In addition, the pulmonary capillaries get damaged. A highly reactive form of the oxygen molecule, called the oxygen free radical, which destroys proteins and membranes in the epithelial cells, probably causes this damage. In humans breathing 100 percent oxygen at normal pressure, here's what happens:Fluid accumulates in the lungs.Gas flow across the alveoli slows down, meaning that the person has to breathe more to get enough oxygen.Chest pains occur during deep breathing.The total volume of exchangeable air in the lung decreases by 17 percent.Mucus plugs local areas of collapsed alveoli -- a condition called atelectasis. The oxygen trapped in the plugged alveoli gets absorbed into the blood, no gas is left to keep the plugged alveoli inflated, and they collapse. Mucus plugs are normal, but they are cleared by coughing. If alveoli become plugged while breathing air, the nitrogen trapped in the alveoli keeps them inflated.The astronauts in the Gemini and Apollo programs breathed 100 percent oxygen at reduced pressure for up to two weeks with no problems. In contrast, when 100 percent oxygen is breathed under high pressure (more than four times that of atmospheric pressure), acute oxygen poisoning can occur with these symptoms:NauseaDizzinessMuscle twitchesBlurred visionSeizures/convulsionsSuch high oxygen pressures can be experienced by military SCUBA divers using rebreathing devices, divers being treated for the bends in hyperbaric chambers or patients being treated for acute carbon monoxide poisoning. These patients must be carefully monitored during treatment.
How does oxygen get into your body?
Oxygen gets into the blood by a process of diffusion from the alveoli of the lungs into the capillaries carrying blood around the alveoli. The higher concentration of oxygen in incoming air moves some into the blood, and the higher concentration of carbon dioxide in the venous blood diffuses into the lungs.
Does oxygen have the long or short o?
oxygen is pronounced likeox as in oxenEjun
How long can a snake fly live?
Depends on the launching mechanism.
What is the name of the mechanism in which long bones ossify?
Endochondral ossification.
What does emphysema do?
Emphysema is a long-term, progressive disease of the lungs that primarily causes shortness of breath due to over-inflation of the alveoli (air sacs in the lung). In people with emphysema, the lung tissue involved in exchange of gases (oxygen and carbon dioxide) is impaired or destroyed.Source: emedicinehealth :)
How long are you planning to stay on this Earth?
As long as God allows.
How do human muscle cells get oxygen?
The process in muscles which uses oxygen is called respiration. Muscles, like all aerobic living cells, require oxygen for aerobic respiration, which is the process by which cells convert food into energy. So when muscles contract, they are using oxygen. When muscles do not get sufficient oxygen for contraction, problems arise. The muscle cells must use anaerobic repiration which is respiration without oxygen. They cannot do this for very long though as the byproduct of anaerobic respiration is lactic acid which causes a fall in pH.
Why are people with emphysema more weak then others?
Emphysema is a long-term, progressive disease of the lungs that primarily causes shortness of breath due to over-inflation of the alveoli (air sacs in the lung). In people with emphysema, the lung tissue involved in exchange of gases (oxygen and carbon dioxide) is impaired or destroyed. Emphysema is included in a group of diseases called chronic obstructive pulmonary disease or COPD (pulmonary refers to the lungs). Emphysema is called an obstructive lung disease because airflow on exhalation is slowed or stopped because over-inflated alveoli do not exchange gases when a person breaths due to little or no movement of gases out of the alveoli.
