why do we have blue and red veins but they show green outside our skin?

Question

please answer soon

Answer 1

your blue veins are oxgenated blood and red is the used blood


you need oxygen to live and you blood cells absorb it and carry it through out your body


if you cut a blue vein the blood would when exposed to the air would turn red....

it would come out red....not blue

Answer 2

The "blue veins" are full of blood that is going back to the heart for oxygen. With the darkness of the color and a natural yellowish pigment of the skin it may look green.

Answer 3

Some people's veins look green, some people's veins look blue. It depends on the pigment of our skin. If you actually pulled a bloodless vein out your skin, it wouldn't look blue, red, or green. Our blood is dark red almost black in color.

Answer 4

The red "veins" you see is actually oxygenated blood. Blue "veins" that you see is blood that is not oxygenated. You see "green" because you are looking at blood traveling through your veins, through your skin. The epidermal (skin) layers and muscle tissue give the appearance of "green" - but they are not really green.

Answer 5

I think it depends on skin tone. I'm very pale and it looks blue to me.

*laughing* Hey, did you know "Blue Veins" is a song by Jack White's side project The Raconteurs?

Answer 6

They do? Not through my skin. My guess is that you have a lot of yellow skin pigmentation. Yellow + blue = green.

Answer 7

ur blood is actually blue, and when it hits the air it turns red....so the skin just makes it look green.

Answer 8

Maybe it's the lighting? They look blue to me.

Answer 9

Sorry, they didnt tell you....you're an alien.