2006-11-13 08:10:42 · 16 answers · asked by Anonymous in Health ➔ Other - Health
blood is not blue
the blood in the veins is darker because it carries deoxygenated blood back to the lungs to receive oxygen
the blood in the arteries is brighter red because it carries oxygenated blood to the body
your cheeks turn red because your blood is going to that area in an attempt to warm it up after receiving a signal from the brain that area is cold
blue blood is a term denoting a person of royal lineage
2006-11-13 10:33:18 · answer #1 · answered by Anonymous · 0⤊ 0⤋
It has something to do with the movement of the blood. Certiain stimulus rushes blood to extremities that is why you see your cheeks turn red. Whether your blood is blue or red, or dark red, blushing only applies to light-skinned people. You can never tell when a black person blushes.
2006-11-13 08:28:52 · answer #2 · answered by Bhing V 2 · 0⤊ 1⤋
Google circulatory system for more information.
There are two paths inside the body. The veins return bluish (really, a dark red) colored blood back to the lungs, where it is oxygenated. It takes on oxygen, which changes the color to a bright red. The bright red blood travels through arteries and capillaries distributing oxygen to our tissues. When you blush, you are seeing this oxygen-rich blood near the surface of the skin.
2006-11-13 08:20:12 · answer #3 · answered by Anonymous · 0⤊ 1⤋
blood is blue when it is deoxygneated until it travels to the lungs and gets oxygneated again
what you are thinking of is a skin reaction when capillaries dilate allowing blood into tissues causing a blushing sensation
bruising also works this ways in which an injury to an area will have capillaries that leak out and pool a small amount of blood, this is why bruises are red, pruple, then black and brown in color
2006-11-13 08:21:31 · answer #4 · answered by Andrea W 2 · 0⤊ 1⤋
Are you certain that blood is blue internally? Where did you get that information? Blushing or any form of redness of the skin due to inflammation is caused by blood coming to the surface of the skin, which would repudiate the idea that internal blood is blue. I've never heard of that.
2006-11-13 08:15:26 · answer #5 · answered by gldjns 7 · 0⤊ 2⤋
Blood is *never* blue. Blood is described as dark red (venous) or bright red (arterial). Our veins look blue because we are looking at them *through* our skin. The blood inside them is dark red and it doesn't reflect light. The blood you see when you get hurt is usually venous blood. Arterial blood comes out in spurts. It spurts every time the heart beats. Ya don't want to see that...
2006-11-13 08:20:55 · answer #6 · answered by Anonymous · 0⤊ 1⤋
Our skin over our veins just makes blood look blue. When you blush, the blood comes closer to the surface of the skin.
2006-11-13 08:13:22 · answer #7 · answered by jerzey79 2 · 2⤊ 1⤋
Blood is never actually blue, although it appears to be blue when we look at veins through skin. Blood is always red: bright red when it is oxygenated on the arteriolar side of our circulation, and deep red when it is not oxygenated on the venous side.
2006-11-13 08:21:10 · answer #8 · answered by Lucy E 2 · 0⤊ 1⤋
I somewhat blush. yet commonly only embarrasing stuff. Like if my pal shouted "SHE LIKES YOU." even as brilliant out with a guy i love, i'd probable turn somewhat red. and being on-level or if absolutely everyone's searching at me makes me blush.
2016-11-23 19:58:20 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Blood is blue but when it hits oxygen it turns red!
2006-11-13 08:27:59 · answer #10 · answered by Stef 2 · 0⤊ 1⤋