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Another question about oxygen?

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what parth does oxygen travel in our body, it goes in through our nose then to our lungs then to our heart and into the blood stream is that right? Can someone explain

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  1. John L is absolutely right unless you are a mouth breather!

    Thought this question could use a little humor since John did the answer part.

    Only thing to add is the part about the red blood cells pick up the oxygen with their hemoglobin in the lungs and release it when they pick up the CO2 from the cells.  CO2 being the product of cellular respiration.

    You see the cells get the Oxygen and by cellular processes turn it into energy and Carbon Dioxide, CO2.  The red blood cells gather this and release the Oxygen.  The red blood cells then carry the CO2 to the lungs where they release the CO2 and pick up more Oxygen.

    Keep smiling ... It gets clearer the more you study.


  2. I think oxygen present  in the air goes into our lungs through respiration,dissolves into our blood  threre ,purifies it and that purified blood circulates in our body.

  3. it goes into our bloodstream and works its way

  4. John's right again but umm the blood gets puerified in the liver not the heart hans.

  5. Oxygen is breathed in from the nose to our lungs

    Our lungs bring the oxygen to the blood vessels which lead to the heart

    The heart pumps the oxygen around to the rest of the body which absorbs the oxygen and uses it as a reactant to produce energy.

    Blood with much less oxygen then returns to the heart and pumps it back into the lungs to collect more oxygen.

  6. Visit this link.

    http://www.ncert.nic.in/textbooks/testin...

    This is the online version of the textbook which I'm using currently. Visit the Chapter Life Processes and flip some 5 - 7 pages (not sure about the pages)and you'll see complete explanation of oxygen cycle in Human Body. Hope that helped to clear your doubts.....

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