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Is deoxygenated blood blue?


Chaos Pudding

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Guest Chaos Pudding

This isn't so much a poll as an experiment, to see how well your biology teachers have taught you. So, what is it? And no fair Wiki-ing it! I want to know what you know or think you know.

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Maybe not blue, but I don't think it's red... *looks at veins* Yep, I think it's bluish purplish...

 

The blood that goes through your veins is deoxygenated blood, that goes back to the heart to be oxygenated, and pumped into arteries throughout the body.

 

On your wrist, there are several veins that can be seen, if you look closely. You can see that the veins are a purplish blue color, so yes, deoxygenated blood is blue.

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Maybe not blue' date=' but I don't think it's red... *looks at veins* Yep, I think it's bluish purplish...

 

The blood that goes through your veins is deoxygenated blood, that goes back to the heart to be oxygenated, and pumped into arteries throughout the body.

 

On your wrist, there are several veins that can be seen, if you look closely. You can see that the veins are a purplish blue color, so yes, deoxygenated blood is blue.

[/quote']

 

What he said.

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It is just plain red' date=' people.

My science teacher taught us that human blood inside the body is green. I'm not stupid enough to believe that, though.

 

Have you ever heard of sulphur? Makes blood green...

 

Why would the human body contain so much sulphur?

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Guest Chaos Pudding

Maybe not blue' date=' but I don't think it's red... *looks at veins* Yep, I think it's bluish purplish...

 

The blood that goes through your veins is deoxygenated blood, that goes back to the heart to be oxygenated, and pumped into arteries throughout the body.

 

On your wrist, there are several veins that can be seen, if you look closely. You can see that the veins are a purplish blue color, so yes, deoxygenated blood is blue.

[/quote']

 

Yes, the veins are blue, but what makes you think the veins are the same color as the blood that inhabits them?

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It is just plain red' date=' people.

My science teacher taught us that human blood inside the body is green. I'm not stupid enough to believe that, though.

 

Have you ever heard of sulphur? Makes blood green...

 

Why would the human body contain so much sulphur?

 

Some people are addicted to antidepressant pills. They contain a lot of sulphur (although I guess in between having green blood and dying there aren't more than 10 or 20 days).

Kinda gives it away because your veins are blue if you don't have any cuts.......

 

The oxygen is what give blood it's Red color' date=' a "Chemical Reaction" if you will. So if there's no oxygen being distributed, then yes, it is blue.

[/quote']

 

Why WOULD it be blue? Where does the blue come from? Nowhere! The oxygen just reddens blood...from black! So, 0% oxygenated blood would be plain black, but blood in our veins is NOT 0% oxygenated, and reaches a dark red colour.

 

Where's your God blue now?

Maybe not blue' date=' but I don't think it's red... *looks at veins* Yep, I think it's bluish purplish...

 

The blood that goes through your veins is deoxygenated blood, that goes back to the heart to be oxygenated, and pumped into arteries throughout the body.

 

On your wrist, there are several veins that can be seen, if you look closely. You can see that the veins are a purplish blue color, so yes, deoxygenated blood is blue.

[/quote']

 

Yes, the veins are blue, but what makes you think the veins are the same color as the blood that inhabits them?

 

The lack of a fully-functioning brain.

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Guest Chaos Pudding

Kinda gives it away because your veins are blue if you don't have any cuts.......

 

The oxygen is what give blood it's Red color' date=' a "Chemical Reaction" if you will. So if there's no oxygen being distributed, then yes, it is blue.

[/quote']

 

Right and wrong. It's true that the oxygen makes blood a bright red. But the absence of oxygen doesn't mean that the blood is blue.

 

Hint: What color is blood that has been donated? Note that it's usually taken from veins, and the bags are vacuum sealed.

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It is just plain red' date=' people.

My science teacher taught us that human blood inside the body is green. I'm not stupid enough to believe that, though.

 

Have you ever heard of sulphur? Makes blood green...

 

Why would the human body contain so much sulphur?

 

Some people are addicted to antidepressant pills. They contain a lot of sulphur (although I guess in between having green blood and dying there aren't more than 10 or 20 days).

 

I meant in a regular human that doesn't do anything out of the ordinary like that. The MAJORITY of humans don't have green blood. :D

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It is just plain red' date=' people.

My science teacher taught us that human blood inside the body is green. I'm not stupid enough to believe that, though.

 

Have you ever heard of sulphur? Makes blood green...

 

Why would the human body contain so much sulphur?

 

Some people are addicted to antidepressant pills. They contain a lot of sulphur (although I guess in between having green blood and dying there aren't more than 10 or 20 days).

 

I meant in a regular human that doesn't do anything out of the ordinary like that. The MAJORITY of humans don't have green blood. :D

 

Meh, just stating how he could be right.

 

 

Anyway, this is getting nowhere, so venal blood=dark red and [/thread]

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Blood would never be black regardless of oxygen level' date=' Versatility.

[/quote']

 

You fail at organic chemistry. Cells in the blood need oxygen to stay alive, and EVEN the cells in the blood need to actually consume oxygen. No oxygen equals cells dying equals liquid and hydrogen being massively removed from the blood equals carbon equals black.

 

Or have you discovered a way to keep erythrocytes alive without giving them oxygen? That would be indeed the most important thing discovered since the Internet.

 

But, as stated before, even venal blood has oxygen in it.

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I'm sure Icy's blood is blue. He probably payed for expensive experimental surgery to turn it blue permanently.

 

And I'm sure you have sludge running through your veins.

 

Of course not.

 

I replace my own blood with the blood of my victims.

 

Are all your victims 0 negative? Wow, you are one lucky person.

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Blood would never be black regardless of oxygen level' date=' Versatility.

[/quote']

 

You fail at organic chemistry. Cells in the blood need oxygen to stay alive, and EVEN the cells in the blood need to actually consume oxygen. No oxygen equals cells dying equals liquid and hydrogen being massively removed from the blood equals carbon equals black.

 

I disagree. No oxygen = cells dying = liquid and hydrogen being massively removed indeed. In that liquid removed from inside the cell is a large amount of hemoglobin. Massive hemolysis inside a vessel still results in red blood tonality because heme is not decomposed until it reaches the spleen. The only way blood would ever be black was if the cell was much larger than it actually is, especially since it does not contain a nucleus. Seeing as most of its content is hemoglobin, it is impossible for blood to ever be black regardless of how many erythrocytes die (because hemoglobin quantity is much larger than that of any other component in the erythrocyte).

 

If your theory was correct, the spleen would be black, seeing as that's where physiologic hemolysis occurs continuously.

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