If you cut your self in outer space will your blood still look purple because there's no oxygen there?

Answer 1

I suppose it probably would, but it evaporates instantly because of the lack of atmospheric pressure.

Answer 2

OK, first of all, blue blood is not a myth. Just look at your wrist where the veins come near the surface. You can see them! They're blue!

Now as for what would happen if you cut yourself in a vacuum. If you cut an artery the blood would be red, because it has already picked up oxygen from the lungs. if you cut a vein the blood would be blue, because it has given its oxygen to the muscles and there is no oxygenated atmosphere to provide more.

However, it's kind of a moot point because your body shouldn't be directly exposed to a vacuum anyway. Astronauts always either work in an environment with an artificial atmosphere or wear space suits. if you entered a vacuum withou a space suit, the change in atmospheric pressure would kill you. (It works like getting the bends from deep-sea diving--when you move too quickly from an area of high pressure to an area of low pressure, gases in your blood come out of solution and you get sick or die.)

Answer 3

The previous answerers are making many assumptions. I will too. In a closed environment such as a shuttle, it will appear as it would on Earth which is a huge closed environment. In a vacuum, then it would again appear normal because it is leaving your body which is a closed environment. Now let's define normal. Normal means that if you breathed oxygen, the part that has oxygen is red and the part which doesn't is not read. You can quit laughing now. Going on. You will die very quickly, but not immediately. Nothing happens immediately. Again, oxygen in the blood makes it look red. The oxygen got there from your lungs and not from space.

Answer 4

That I was able to cut myself indicates that I am alive. Being alive indicates that I have oxgen in my blood, therefore I must have access to an oxygen supply. No oxygen in space? this hasn't affected the success of our astro/cosmonauts.
Long story short....my blood will appear normal in colour.

Answer 5

Blood is not blue ever at any point. It is always red. Veins are blue by happenstance. Just because the veins are blue does not mean the blood is.

Answer 6

providing that you were breathing air at that moment, yes, your blood will have oxygen in it, though it will rapidly diffuse and disappear from your blood

Answer 7

It only works with Green ling Cod.

Answer 8

Seems to me, if a human is in an oxygen free environment, then they would be dead.

Answer 9

I think blood looking purple coz theres no O2 is an urban myth..

Answer 10

if you really had no oxygen you wouldn't really care about your blood color =)