Lungs absorb gases from the air. These include oxygen, carbon dioxide and nitrogen. The oxygen is higher in concentration outside of the lung and so passes into the lung and to the blood. The opposite is true of carbon dioxide. There is much more nitrogen than any other gas but it is passive and the body doesn't make use of nitrogen this way.
your lungs
they absorb oxygen directly from the air without lungs.
The respiratory system seems like the obvious answer, but you used the word absorb. The respiratory system takes air into the lungs, but the red blood cells (erythrocytes) absorb the oxygen out of the air taken into the lungs. The circulatory system then delivers these red blood cells to the capillaries where the oxygen is traded for carbon dioxide as the cells need.
the blood absorb oxygen in the lungs(cappilaries)
Alligators are air breathers. They inhale and exhale through their nostrils. Their lungs absorb oxygen from the air that they inhale.
The respiratory system seems like the obvious answer, but you used the word absorb. The respiratory system takes air into the lungs, but the red blood cells (erythrocytes) absorb the oxygen out of the air taken into the lungs. The circulatory system then delivers these red blood cells to the capillaries where the oxygen is traded for carbon dioxide as the cells need.
No, lungs do not absorb all of the oxygen present in the air we breathe. Only a small percentage of the oxygen in each breath we take is actually absorbed into the bloodstream through the alveoli in the lungs. The rest is exhaled back out into the atmosphere.
The capillaries absorb oxygen at the lungs. This occurs near the alveoli.
air. when the air goes into your lungs loads of tiny viens in your lungs absorb the oxygen that gets passed to you heart + is absorbed in your blood that takes it around the body. you breath out the chemicals in the air that you don't need, like carbon dioxide. hope this helped :)
The lungs provide for gas exchange between the blood and the air. So when your heart pumps blood to your lungs, the lungs provide an area for blood to absorb oxygen from the air we breath in and to rid its self of excess carbon dioxide, which is then exhaled.
No, they have gills.Sharks do not breathe with lungs, but with gills that absorb the oxygen in the water.
The respiratory system seems like the obvious answer, but you used the word absorb. The respiratory system takes air into the lungs, but the red blood cells (erythrocytes) absorb the oxygen out of the air taken into the lungs. The circulatory system then delivers these red blood cells to the capillaries where the oxygen is traded for carbon dioxide as the cells need.