Blood veesels that are red are carrying blood that is rich in oxygen. Blood vessels that are blue are carrying blood that is oxygen poor. Red blood cells carry the oxygen, and they are the parts of the blood that turns red when carrying oxygen.
its because the veins carry blood away from the heart and so they have no oxygen in them, and arteries carry blood to the heart and so they contain oxygen. im not quite sure about the directions but im sure about the oxygen
only the veins are blue because they blood cells have no oxygen so they are heading back to the heart for fresh oxygen and then goes through this progress again. the blood is red because its blood of course.
Red vessels are the vessels transporting oxygen-rich blood. They transport the oxygen from the heart to the body parts. (aorta)
Blue vessels are the vessels transporting carbon dioxide-rich blood. They transport the carbon dioxide to the heart, to the lungs to be breathed out.
Veins are only blue; the red ones are arteries.
the reddish blood vessel carries oxygenated blood and the bluish blood vessel carries deoxygenated blood.
Still red.
When blood cells have oxygen they are red, when they have no oxygen they are a darker shade of red.
No deoxygenated blood is dark red and oxygenated blood is lightish red.
No. De-oxygenated blood is a dark red color. It may look blue in an anatomy and physiology text book, but the authors do that to show more clearly which blood vessels, usually veins, that carry de-oxygenated blood. That is why they color them blue. And then the arteries, which usually carry oxygenated blood, are colored red. In real life, your veins look blue because of the other tissues that have pigments in them that you have to look through to see your veins. Even though they appear on the outside to be blue, in fact, on the inside they are carrying deep dark red blood. Just look at the vial of blood the next time the nurse draws some for a test. You will see that it is dark red.
red and blue. the red blood is closer to the other side of your skin and the blue blood is deeper in your body.
? Are you asking what color does blue blood turn after it comes in contact with air? Red!
When the blood is going to the heart it is blue. When it is going away from the heart, it is red.
blue,cheers and thanks
Some will say that the blood is blue in the veins because your veins are blue looking. This is incorrect. The blood is in fact red inside the veins, the veins just look blue due to the way the light passes through the fat and skin cells above.
Blood is actually the color red, so blood is represented by the color red because it is red. It is sometimes represented by blue to represent deoxygenated blood, which is actually dark red as opposed to the bright red of oxgyenated blood. This is purely for visual purposes so those learning about the circulatory system can see clearly where there is oxygenated blood and where there is deoxygenated blood. The myth that human blood is blue is not true, but the blood of a horseshoe crab is actually the color blue.
No ,it is purplish red .
In relation to the human body, it is a common misconception that blood is blue; all blood is red. The blue appearance is due to the connective tissues of the blood vessels. Blood cells can be either erythrocytes, which are red, or leukocytes, which are white. When blood is oxygenated it is a much brighter red than de-oxygenated blood.