This brings up an interesting question, is it the diffusing capability or other factors that is mainly responsible for keeping our oxygen levels up?MadelineConnected by DROID on Verizon Wireless Re: Sharon & exercise > >Date: December 4, 2011 9:3

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This brings up an interesting question, is it the diffusing capability or other factors that is mainly responsible for keeping our oxygen levels up?MadelineConnected by DROID on Verizon Wireless Re: Sharon & exercise > >Date: December 4, 2011 9:31:20 PM EST > >To: asthma > >Just one clarification...> >The pulmonary vessels are the exact opposite of the other arteries and veins.  The pulmonary artery is the only artery that carries deoxygenated blood...it goes from the heart to the lungs.  Likewise the pulmonary vein is the only vein that carries oxygenated blood because it goes from the lungs back to the heart.   (Any vessel that carries blood AWAY from the heart is an artery....and any vessel that carries blood TO the heart is a vein).  > >> >Awesome explanation though...> >Ann>