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Why does blood look blue under your skin but once cut its red?In: Health
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Simple Answer: Blood should always have oxygen in it,hence the reason you breathe!
Arteries- carries oxygen to the organs ...Veins- Brings the blood back to the heart....Since your mother was oxygenating you as a baby your blood has always touched air!
The oxidation state of the iron in the hemoglobin determines it's color; when the blood hits air the hemoglobin becomes oxygenated, so the iron's oxidation state changes, changing the color of the blood. However, the color only changes from dark red to light red, it is never blue.
It's not really blue. The changes in blood coloration you're describing relate to the respiratory pigment, hemoglobin. Hemoglobin is a topologically complex molecule that very readily binds to oxygen. Once the molecule is fully saturated, it reflects in the crimson red spectrum, and therefore fully oxygenated blood appears to be bright red.
After the hemoglobin molecule gives up its oxygen to tissue that needs it, the molecule becomes much less reflective, and thus deoxygenated blood appears very dark red to purple, or almost black. Blue is used in charts and diagrams to contrast against red, red being the arterial system bearing O2 and blue being the deoxygenated blod or venous system.
Human blood is red. Can have different hues of red, but still red.
that is partly true but I have herd from all my teachers that your blood is blue in the arteries. Which when you get cut the air puts oxygen in the blood stream that makes the blood turn red.
answer #2
The statement that blood is blue inside the body and turns red when in contact with blood makes little sense. How can this be so when blood itself is used to transport oxygen throughout the body? It is not possible for blood to be blue inside the body as well as carry out one of it's main functions.
Arteries- carries oxygen to the organs ...Veins- Brings the blood back to the heart....Since your mother was oxygenating you as a baby your blood has always touched air!
The oxidation state of the iron in the hemoglobin determines it's color; when the blood hits air the hemoglobin becomes oxygenated, so the iron's oxidation state changes, changing the color of the blood. However, the color only changes from dark red to light red, it is never blue.
It's not really blue. The changes in blood coloration you're describing relate to the respiratory pigment, hemoglobin. Hemoglobin is a topologically complex molecule that very readily binds to oxygen. Once the molecule is fully saturated, it reflects in the crimson red spectrum, and therefore fully oxygenated blood appears to be bright red.
After the hemoglobin molecule gives up its oxygen to tissue that needs it, the molecule becomes much less reflective, and thus deoxygenated blood appears very dark red to purple, or almost black. Blue is used in charts and diagrams to contrast against red, red being the arterial system bearing O2 and blue being the deoxygenated blod or venous system.
Human blood is red. Can have different hues of red, but still red.
Answer
Your blood is bright red in the artery and dark red in veins. You do not have [ blue blood ] . It only appears blue because the veins which are white are are carrying dark red blood and being viewed through the skin which difuses the light and makes them appear blue.that is partly true but I have herd from all my teachers that your blood is blue in the arteries. Which when you get cut the air puts oxygen in the blood stream that makes the blood turn red.
answer #2
The statement that blood is blue inside the body and turns red when in contact with blood makes little sense. How can this be so when blood itself is used to transport oxygen throughout the body? It is not possible for blood to be blue inside the body as well as carry out one of it's main functions.
First answer by ID1112230915. Last edit by DrCJones3. Contributor trust: 0 [recommend contributor]. Question popularity: 9 [recommend question].
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