Why does the blood go from the lungs to pick up oxygen and then return back to the heart to be pumped around the body ?

Why can't it just get out of the lungs from the first pump and then pick up an artery and go around of the body instead of returning ?

1 answer

Sorry, I am smiling.... but it doesn't do that because that is just not the way it was built.

Maybe as we "evolve" we will become more efficient. <G>