Why is blood blue inside and red when it's pouring?

by 123HelloKittyx Posted 2012/06/30 17:37:30

Related Topics: Blood, Body

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	I know it's because......	43 votes	90%
	I don't know.......	5 votes	10%

When you cut yourself why is it red but blue when it's still in your body?

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bodaishinboy 2012/06/30 20:11:11 (edited)

I know it's because......

+6
Not all blood is blue inside of your body. It's actually blue and red. Red blood is oxygenated blood which flows in your ateries and away from your lungs. Blue blood is blood which has given up its oxygen and and travels in your veins back to your lungs to pick up more oxyen. The reason blood turns red outside of your body is because it is absorbing oxygen from the air.
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KrSpo 2012/07/03 17:10:33

I know it's because......

It's only blue on the return trip. Lack of Oxygen causes the blood to appear blue. When you cut yourself, the blood cells absorb oxygen from the air

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Me 2012/07/02 05:12:44

I know it's because......

of oxygen

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sportsone234 2012/07/01 19:52:03

I know it's because......

When blood is oxygenated it turns red

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⚜3rd Street Boss⚜ 2012/07/01 07:24:41

I know it's because......

Hitting air is what I've always been told

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thecutesttentacle 2012/07/01 06:43:29

I know it's because......

when blood gets oxygen it turns red.

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tblackb 2012/07/01 05:36:22

I know it's because......

turns red when exposed to the earth's atmosphere (air).

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La 2012/07/01 03:21:42

I know it's because......

Oh god, how painful. Study biology? But basically, oxygenated blood is red and otherwise it's blue. Blood goes through the lungs, becomes oxygenated, then travels through the body providing oxygen to your cells.

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Dandydon 2012/07/01 03:05:19

I know it's because......

It's never blue and it doesn't turn red,it's always red.
It looks blue while in the veins because the color of veins...

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La to Dandydon 2012/07/01 03:22:56

True. At its least oxygenated, it's a purplish-red >.> As opposed to bright red. But it's called "blue" anyway ;)

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Erin V. 2012/07/01 02:45:55

I know it's because......

BECAUSE IT HASNT BEEN MIXED WITH OXYGEN YET....WHEN IT DOES IT TIRNS RED

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Charmaine 2012/07/01 02:16:11

I know it's because......

+1
The blood comes in contact with oxygen!!!

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The River Rat 2012/07/01 02:12:48

I know it's because......

+1
I see some others have given a good explanation so i'll pass.

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Megan's a soul collector 2012/07/01 01:24:10

I know it's because......

+1
Hate to be late to the party... but oxygen.

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Alli 2012/06/30 23:35:10

I know it's because......

+1
It turns red when it reacts with oxygen.

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Vision of Verve 2012/06/30 23:11:24
RasHooD 2012/06/30 22:30:07

I know it's because......

+1
the blood never was blue its all red from the day we were born

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WhereIsAmerica? ~PWCM~JLA 2012/06/30 21:00:52

I know it's because......

+2
Interesting answers, but I don't think blood is ever blue. I agree blood that is not oxygenated is darker, but it is very dark red, might appear purplish or bluish, but it is still red, and I think we are just talking different shades of red.

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Dandydon to WhereIs... 2012/07/01 03:08:48

+1
Exactly,it just looks like that through your veins.
Blood already has oxygen in it,if it didn't you would die.

Just shows what kind of foolishness is taught in schools these days...

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Julian 2012/06/30 20:57:38 (edited)

I know it's because......

+1
What's really interesting is the difference between 'blue bloods' and the 'red blooded' rest of us. The blue bloods are blue bloods because they never spill their blood. Think about it.

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william 2012/06/30 20:50:10

I know it's because......

+1
when it comes out of your body the oxygen makes it turn red...

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selena costa 2012/06/30 20:50:00

I know it's because......

+1
oxygen

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TheHushedScreamer 2012/06/30 20:42:41

I know it's because......

+1
Oxygen.

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FAWKES' NOOSE ~ ΔTX 2012/06/30 20:19:21

I know it's because......

+2
Only half the blood in your body is blue. That occurs when it is De-oxygenated. Oxygen causes blood to be red, which is why its red when you bleed.

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Angi 2012/06/30 20:17:24

I know it's because......

+1
I think red blood is a chemical reaction with oxygen.

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bodaishinboy 2012/06/30 20:11:11 (edited)

I know it's because......

+6
Not all blood is blue inside of your body. It's actually blue and red. Red blood is oxygenated blood which flows in your ateries and away from your lungs. Blue blood is blood which has given up its oxygen and and travels in your veins back to your lungs to pick up more oxyen. The reason blood turns red outside of your body is because it is absorbing oxygen from the air.

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MlssCue =Go Blue= 2012/06/30 19:58:07

I know it's because......

+2
The oxygen in the air makes it change color

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Jeff Vader 2012/06/30 19:37:05

I know it's because......

+2
Blood is not blue at anytime, unless your a horseshoe crab. Blood is generally a darker shade of red inside the body and turns lighter as the iron in the blood oxidizes on contact with air. Oxygenated blood in the body is slightly lighter but still dark compared to when it leaves the body.

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doctorwhofan~Tatae~BN-4 2012/06/30 19:33:22

I know it's because......

+2
It turns red when it's exposed to oxygen

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mk, Smartass Oracle 2012/06/30 19:21:30

I don't know.......

I have no clue. Tell me.

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♥☯ ʂıoвнaп ☮♥ 2012/06/30 19:12:23

I know it's because......

+2
Blood is never blue. When blood is in your body, it's dark red, and when it comes in contact with oxygen, it turns a lighter shade of red. You can tell because when a doctor or nurse draws blood with a syringe, you can look in it and see the blood is red. Since a good, quality syringe won't have oxygen in it, you are looking at blood that hasn't come in contact in oxygen.

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Farnsworth 2012/06/30 18:31:46

I know it's because......

+3
You have both kinds in your circulatory system. Blood going to the lungs is blue (no oxygen), blood exiting the lungs is red (oxygenated).

arterial blood is oxygenated
vein blood is blue

Howz that?

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in vino veritas 2012/06/30 18:15:58

I know it's because......

+1
oxygenated blood delivers just that to vital organs it returns deoxygenated blood to be cleansed by the lungs,amazing process...

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Lina Blub 2012/06/30 18:11:59

I don't know.......

*looks below* omg SodaHeads are rly clever o_o'

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123Hell... to Lina Blub 2012/06/30 18:12:59

I know o_o

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jgh57 2012/06/30 18:09:01

I know it's because......

+4
Blood is a darker shade of red when it is in the vein on it's way back to the lungs but it is never blue. I've done enough venipunctures into syringes or tubes that have no oxygen in them to know. The blood is dark red. When you do an arterial stick it is a brighter red but never blue.

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123Hell... to jgh57 2012/06/30 18:09:55

Ok thnx 4 telling me

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Nam Era Vet #1 DNA TLC 2012/06/30 18:06:42

I know it's because......

+2
Oxygenated blood is red in the arteries. Blood that has used up it's oxygen is blue in veins.

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123Hell... to Nam Era... 2012/06/30 18:07:26

Thnx

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SK-LIBERTY OVER EQUALITY 2012/06/30 18:05:07

I know it's because......

+1
it changes color when it comes in contact with oxygen.

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123Hell... to SK-LIBE... 2012/06/30 18:06:02

+1
Thnx

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