I asked a similar question about blood and the circulatory system the other day and got a very fulfilling answer, so trying again.
So I imagine at an atomic level, or possibly cellular level, things like osmosis or the movement of cells and atoms from one place to another is quite slow? I imagine H2O molecules taking minutes to 'seep' through some membrane?
But my question is to do with the movement of oxygen from the air we breathe to the blood that transports it around our bodies...
If you think about it, you breathe in, and then usually breathe all that air out again straight away ! And only a portion of that air will be against a wall of any sort... how does the transition of oxygen happen quickly and efficiently enough in order to feed how whole bodies?
So I imagine at an atomic level, or possibly cellular level, things like osmosis or the movement of cells and atoms from one place to another is quite slow? I imagine H2O molecules taking minutes to 'seep' through some membrane?
But my question is to do with the movement of oxygen from the air we breathe to the blood that transports it around our bodies...
If you think about it, you breathe in, and then usually breathe all that air out again straight away ! And only a portion of that air will be against a wall of any sort... how does the transition of oxygen happen quickly and efficiently enough in order to feed how whole bodies?
