Is blood low in oxygen blood blue or is that just how text books differentiate between veins and arteries? They look blue under the skin. Are the veins blue but blood still red? I mean a green hose puts out clear water... Whats the deal?
by 
Mike Honcho
ANSWERS: 7
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Blood is blue until it has oxygen.
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blood is blue until it hit oxygen on the outside of your body.
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your blood is blue, when oxygen hits it it turns red. your veins are clear, with blue blood in them, which is clean blood. arteries hold oxygenated blood, which carries the oxygen to the organs that need the oxygen, and are red.
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Blood is red not blue. The difference between highly oxygenated blood & oxygen-deprived blood is the shade. Dark red if low oxygen & bright red if oxygenated. The whole blue blood thing is simply a myth. The blue colouration comes from the vein walls.
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It's always red. Oxygenated or not.
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Hahahaha I love it. This is the same mixed reply I got at work... I did a lil research and know the answer But I am asking so people ask themselves...
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Arterial blood which is rich in oxygen is bright red in colour, venous blood containing little oxygen is dark red, blood is never blue.
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