Wednesday, December 12, 2012

The secret of life

Gas exchange!
Oxygen (green) out of the blood into the tissues;
Carbon dioxide (blue) OUT of tissues into blood;
INTERNAL RESPIRATION!
Carbon dioxide (purple) out of the blood into the alveoli;
Oxygen (red) into the blood out of the alveoli.
EXTERNAL RESPIRATION!

I'll take my Nobel, now!

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