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.
no
inside the body blue outside the body red
Inside your body, blood is blue. Therefore your arteries and veins appear blue through the skin. Your blood turns red outside of the body because oxygen gets into the blood. The oxygen changes your blood's color from blue to red.
Frequently the answer is "blood is blue inside us and red when it hits the air". Blood carries oxygen in our body so this really doesn't make sense. Blood is red with arterial blood being brighter and venous blood being darker. Our blood vessels have a bluish appearance through our skin but just as water going through PVC piping isn't white, blood isn't blue.
blood is blue inside the body . kenzi is a noob.
Our blood is not blue when in the body. Many people think that because they assume that we don't have oxygen,and when exposed to oxygen it turns red. This isn't true because we do have oxygen in our body. Without it inside we will be dead.
blood is red blood cells that help your body flush out the bad stuff. blood is blue when its inside you and when it mixes with oxegn it turns red.
it is blue inside your body but outside when it gets air it is red so veins r blood n veins r blue so yeah
No
It never is blue. Do not listen to what other people. My science teacher told me this today and it is never really blue. In diagrams they use blue to show the path way of the blood. I dissagree however my science teacher said your heart is split up into a right and left side your right side has blue blood and your left has red blood lol i went over this today to.
Our blood is never blue. It is a commonly believed untruth. Blood in our veins is dark red, never blue.
its blue/dark red blood before it turns fire engine red by oxygen not black.