2007-10-23 16:29:19 · 13 answers · asked by sofnesh 1 in Science & Mathematics ➔ Astronomy & Space
some levels of oxygen are always in your blood thusly it doesn't ever turn blue............ever
the iron mixing with oxygen within hemoglobin gives blood its red color. I image it as rust.
your veins appear blue because thats the color some tissue/elements look, also purple red pink brown yellow and grey.
2007-10-23 17:14:58 · answer #1 · answered by Mercury 2010 7 · 0⤊ 0⤋
Yes it is true. When you look at any blood veins in your body they are blue. Your blood is blue untill it hits oxygen. The oxygen causes your blood to become red.
2007-10-23 16:40:39 · answer #2 · answered by someone 1 · 0⤊ 2⤋
no absolutely not
"First thing: 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 very well."
"oxygen poor blood is most definitely NOT blue. As you point out, it is a sort of purplish/maroon color at best. I work in the clinical labs, and have seen countless tubes of blood drawn from oxygen poor veins into vacuum tubes (i.e. never exposed to air), and it has never looked like the color of your veins!
Realize that to see the vein at all, light has to go THROUGH the skin and hit the blood in the vein. The blood absorbs certain colors of light, and reflects others back through the skin. In the skin, it is potentially subject to all sorts of effects, including scatter by the 'stratified' layers, and absorption by the pigmented layers (i.e. melanin). For some reason, the combination of these effects (absorption by oxygen poor blood and absorption/deflection in the skin) gives a blue color"
etc...
2007-10-23 17:10:47 · answer #3 · answered by Anonymous · 1⤊ 0⤋
True. Look at your wrist, or ankle. The blood is the vessels is blue, and is the farthest away from your heart, meaning it lacks the most oxygen. Oxygen interacts with the iron in the blood to turn it red.
2007-10-23 16:35:24 · answer #4 · answered by Patti D 2 · 0⤊ 2⤋
No. Veneous blood is a dark purple color until it hits oxygen, either by you bleeding or by circulating through the lungs. The blue color is the veins themselves.
2007-10-23 16:36:40 · answer #5 · answered by Rebeckah 6 · 1⤊ 0⤋
No it isn't. It is red, just a shade or two darker. Those blue things you see under your skin are veins and have no bearing on the color of your blood. I used to draw both venous and arterial blood. There is a difference in the tone, but I assure you, they are both red.
2007-10-23 16:37:08 · answer #6 · answered by Anonymous · 1⤊ 0⤋
kind of, in fact its never really blue, its more of a darker red. it depends on whether oxygen is attached to the hemoglobin in a red blood cell or not.
2007-10-23 16:41:25 · answer #7 · answered by Anonymous · 1⤊ 0⤋
Pentavalent (deoxygenated) hemoglobin is blue. This means when O2 is not bound to hemoglobin, the heme group has five bonds and its colour is blue. Hexavalent (oxygenated) hemoglobin is red - the O2 binds at the 6th co-ordination position and this changes the heme to become red coloured.
2007-10-23 17:11:25 · answer #8 · answered by BC's bud 2 · 0⤊ 1⤋
Yes, unoxygenated blood appears blue in the veins. Once blood passes through your heart and is oxygenated, it flows through your arteries and appears red.
2007-10-23 16:35:57 · answer #9 · answered by Chrystal J 1 · 0⤊ 2⤋
No....the iron in blood makes it red
2007-10-23 16:33:42 · answer #10 · answered by Anonymous · 0⤊ 0⤋