is there any true in blue blood be for oxygen???dr. say that your blood is blue be for the oxygen hits it T/F?

Answer 1

This is completely false, I have several research articles which disprove this. Your blood is never blue! It does turn a brighter red when it contains more oxygen, but it will never turn blue. The reason for this myth is that the blood vessels are a creamy white/yellow color. If you mix this with the red blood that is flowing beneath them, it gives the illusion that blood vessels are blue in color. In reality they are not, and neither is the blood that flows in them. Don't believe me, take a syringe and withdraw blood from anywhere in your body. You will never withdraw blue blood:)

Answer 2

Human blood is ALWAYS red. Really. Anyone who says it's blue is mistaken.

This is plainly obvious if you ever donate blood. Phlebotomists always take blood from veins, they are required to do it without exposing it to air, and it always looks red. Likewise, any surgeon (or sausage company) will tell you that all veins and arteries are pretty much clear.

Now, I know what some of you are thinking: 'Wait a minute - I can see some of my veins and they are clearly blue!'. It's okay. There are scientists who have wondered about that too:

Veinous blood looks blue only because of the environment that it's in. You can reproduce the effect by surrounding red veinous blood with a pool of red oxygenated blood (or even milk)... the veinous blood looks blue once you submerge it to a certain depth! It's much the same kind of effect that makes the sky looks blue - some frequencies of light are being preferentially absorbed and reflected and making something look a different colour than it really is.

And so it goes with other colours as well. Many people have pigments in their skin that can alter the apparent colour of veins and arteries underneath. But this hardly means that the blood actually IS different colours!

There are creatures in the world that do not have red blood - some have greenish-blue blood because they use copper atoms to attract oxygen instead of iron. It doesn't work anywhere near as well, unfortunately for all the octopi and mollusks out there.

Answer 3

that is completely false. Blood is always red. It looks bluish under your skin because of the thickness of your skin.

Also, the (primary) purpose of blood is to carry oxygen throughout the body, so all blood always has at least some oxygen in it.

Answer 4

i dont really get wat u r trying to ask.
well, the blood mostly contains plasma which is yellow in colour but the presence of RBC enriched with oxygen makes it look red. the blood appears to be kind of purple when RBC not enriched with oxygen travel through the veins to the heart to be enriched with oxygen again.

Answer 5

Please quickly do an internet search on "circulatory system." You will find lots of information, pictures, diagrams, and examples of clear, correct English writing.