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When blood is deprived of oxygen its not red, which is why your veins have a bluish color but if you fall down and scrape yourself the blood will always be red because of the oxygen in the Earth's atmosphere. Hypothetically if I created an environment without any oxygen in the air, and I cut a vein, would the blood be blue?

2007-07-14 09:19:31 · 14 answers · asked by Anonymous in Science & Mathematics Biology

14 answers

No it would not be blue due to the iron it it which makes it red. Its not blue in your veins, just a light red. Though it appears blue. When oxygen hits it it becomes a deeper red.

2007-07-14 09:24:12 · answer #1 · answered by H.C 2 · 1 2

yes it would, but at the same time maybe there are other molecules besides oxygen that also make blood turn red.... but yes hypothetically speaking if u were in an environment without oxygen then when you cut a vein it would be blue

go to wikipedia. com and type in blood and im sure u'll find the answer to your question sumwhere in there

2007-07-14 16:24:35 · answer #2 · answered by Anonymous · 0 1

Hypothetically yes. If there is no oxygen in the atmosphere then venous blood leaving the body will not turn red because no oxygen is reacting with the hemoglobin.

2007-07-14 19:06:35 · answer #3 · answered by freesince1776 5 · 0 1

No, that is a myth. Sometimes when you get your blood drawn it is drawn into a vaccum tube (no oxygen), and the blood is still red. Your veins appear blue because you are viewing them through several layers of skin.

2007-07-14 16:23:41 · answer #4 · answered by red_necksuck 4 · 1 1

It's a myth that veinous blood is blue. Veinous blood is dark red and arterial blood is light red. Your veins look blue because you're viewing them through your skin.

2007-07-14 19:06:17 · answer #5 · answered by Somes J 5 · 1 0

arteries carry red blood, veins carry blue. Arteries take the oxygen-heavy blood to your body's cells, drops off the oxygen, and returns blue, sine there is no more oxygen.

2007-07-14 16:29:03 · answer #6 · answered by solidshrimp 2 · 0 2

that red-blue diagram of the artery-veins in the circulatory system is used just to differentiate the two.... blood is always red not because of the rbc but because of the protein hemoglobin present in the rbc itself...

2007-07-14 17:11:26 · answer #7 · answered by thinker_miller 4 · 1 0

i thought it was the rbc that gave the blood red color

2007-07-14 16:22:55 · answer #8 · answered by J Jacob 4 · 0 0

You will still have the heme, which is perceived as red b/c of the iron content.

2007-07-14 18:07:34 · answer #9 · answered by bronte heights 6 · 0 0

hypothetically speaking it makes sense for the blood to be blue!!!!

2007-07-14 17:46:38 · answer #10 · answered by Anonymous · 0 1

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