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Veins close to the surface of the skin appear blue for a variety of reasons. However, the factors that contribute to this alteration of color perception are related to the light-scattering properties of the skin and the processing of visual input by the visual cortex, rather than the actual color of the venous blood.
Wiki User
∙ 6y ago
Wiki User
∙ 9y agoYour blood is red. When you get blood drawn they do it by creating a vacuum in the test tube... this means that there is an absence of oxygen, which supposedly what turns your blood from blue to red.
Good question! (I wonder where you thought of that.)
According to one of the leading experts on the human circulatory system, blood flowing through veins is blue.
I'm not going to mention any names. All I'll say is this: A person I know visited a major research center last year and saw a demonstration of organ removal and some other experimental stuff. A person also visiting asked the famous high-level researcher doing this work if blood was ever blue. What he said was not recorded in detail, but it was very much like this statement I found on the internet: blood is red as soon as it is oxygenated. Blue blood flows through veins back to the heart and lungs...
Blood is NEVER Blue, even after it hits oxygen. Its Is Always red.
The oxygen does change the tint, making arterial blood lighter red than that returning through the veins, but it is still always red.
Wiki User
∙ 12y agoBlood is red in humans, due to the red pigment of the blood-carrying protein, haemoglobin. 'Deoxygenated' blood (oxygen never disassociates itself fully) is dark red, while oxygenated arterial blood is a bright red. The myth about 'blue blood' comes from the colour of veins viewed through the skin. While they appear blue, the colour changes due to the light passing through vein and skin tissue.
Wiki User
∙ 12y agoHuman blood is never blue, though the veins make it look it. Veinal blood extracted by a syringe for a blood test never comes in contact with the air, and is quite clearly red, albeit a darker shade then arterial blood.
Wiki User
∙ 11y agoyes the vains that you can see through your skin are blue so ya i really have no idea
blood is RED, It is never ever ever ever blue. anybody who tells you it is blue hasnt a clue what they are talking about.
Wiki User
∙ 13y agono it is not it is red that is just the colour of your veins
Wiki User
∙ 12y agoNo, it is always red, just a different level of brightness.
Wiki User
∙ 12y agoNo, Its red although lobsters have blue blood
Wiki User
∙ 12y agoyes
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What color is blood when it comes into contact with oxygen?
Blood is always red.
Is all of your blood red?
No, blood is really blue until it comes into contact with oxygen
What is blood before it goes to the lungs?
Blood goes to the lungs oxygen poor and comes out of the lungs oxygen rich.
Where does blood go a brighter color?
Blood is bright red due to the high concentrations of oxygen in it. This blood is known as oxygenated blood. Blood that appears dark in color or "blue" is blood that has been used by the body and has a higher concentration of carbon dioxide in it. This blood in known as deoxygenated blood!
Explain why some blood is pictures red and some is pictured blue. How does the blue blood turn red?
once it comes into contact with oxygen it turns red.
Does saliva with hiv infects you when it comes in contact with your blood?
You can't get HIV from saliva. That's true even if it comes in contact with your blood.
Is blood clear?
No blood is not clear it's a purple to blue color before it hit oxygen that's why when you look at your veins there blue and when you cut or scratch your self the blood comes out red because it has hit the oxygen. Hope that helps :)
What forms when iron comes in contact with oxygen in water?
rust
What takes oxygen into the blood?
Oxygen enters your blood stream in your lungs. Inside your lungs the air pipe branches into smaller pipes which branch a number of times eventually forming 'alveoli'. The great amount of braching increases the surface area so there is more area for oxygen excahnge to occur, making the process more efficient. In the alveoli the capillaries are very close to the surface, so close that the oxygen gas can move across the thin wall into the blood stream. This is facilitated by haemoglobin which attracts and bonds with oxygen molecules.
Blood in the heart chambers comes into contact with the?
epicardium
Oxygen comes into the body through the what?
In humans, oxygen comes into the body through the lungs and is then transported throughout the body by red blood cells.
How does muscle obtain oxygen?
well you all know that blood is really blue ,but once it hits air it turns red that's why when you get a cut ,before you had a cut the blood was blue , but once the blood comes out and it absorbs the air it turns red.So with that said when the blood circulates in the muscle the blood is red and full of oxygen so the blood gives the muscle oxygen every time blood passes through it keeps giving the muscle oxygen 24/7<3
