if we all have blue blood?

Question

if we all have blue blood then how come when us women have a period that it comes out red then and when i cut myself the other day it was red then also

Answer 1

We've all been lied to hon.

Answer 2

blood is red when exposed to or saturated with oxygen, blood turns blue as it loses oxygen, your blood flows through your body distributing oxygen and the closer it it to the skin the less oxygen is present because it's just distributed oxygen to your skin but when your draw blood from the same vain that looks blue you are drawing it from blood flow and therefore it still is saturated with oxygen and therefore red even though it's in a air tight vacuum, there may be a much better explanation out there but that's the best i can do hope it helps though:o)

Answer 3

The color of the blood changes due to the contact that is made with the oygen in the air. The hemoglobin is what changes from blue to red because of a chemical reaction with the oxygen contained in the air.

Answer 4

What I've been told is that when blood escapes the body, it reacts with the air around it and turns red. I'm not sure that this is true as when you give blood it comes out red and stays red in the vaccum sealed pouch.

Answer 5

It is very definitely red, the blueness is only an illusion when viewing the veins through the skin. And blue blooded really refers to the royal family, particularly because the Spanish royal family were altogether less swarthy than the Spanish are in general, because they had all that interbreeding with northern European royalty who were very fair skinned. And therefore more visible blue veins in their wrists.

Answer 6

Blood is never blue. It looks that way because we are lookin at our veins through our skin. I was told that blood was blue until it hit air as well, but it's simply not true. "fresh blood" is bright red, and blood through our veins is a darker red.

Answer 7

I've always heard the theory about it being blue until exposed to oxygen, but why is it red when donating blood or when you put a flashlight under your hand or next to your cheek? I think the blue color we see on our arms is actually the vein itself.

Answer 8

It's an optical illusion. The light scatters when it hits blood and only the red light bounces back, so it looks red even though it's blue.

Answer 9

The blue blood turns red when exposed to air. Look at your veins in your wrists...they're blue...that's the blood in them. Blood is blue until exposed to air.

Answer 10

Our blood is RED. Period.

Answer 11

Who said that we have blue blood anyway? My blood's red as far as I know.