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Seren
26-05-2007, 09:54 PM
You know people say that your blood is actually blue but turns red once it's exposed to oxygen?

how can this be prooved as your blood cells carry oxygen?


Pretty random question but it was something me and my mates were talking about yesterday.

Ashhizzle
26-05-2007, 09:57 PM
Good point, What about when its taken all the oxygen and given it to the parts of the body that need it, and its on the way back to the heart EH EH EH!

Carlos
26-05-2007, 10:00 PM
its blue?

oO

Virgin Mary
26-05-2007, 10:46 PM
No it's red, and darker red without oxygen.

Digital
26-05-2007, 10:50 PM
When you get a blood test or w.e the blood that gets taken out is red

dirrty
26-05-2007, 10:52 PM
Color
In humans and other hemoglobin-using creatures, oxygenated blood is bright red. This is due to oxygenated iron in the red blood cells. Deoxygenated blood is a darker shade of red, which can be seen during blood donation and when venous blood samples are taken. However, due to skin pigments, blood vessel coverings and an optical effect caused by the way in which light penetrates through the skin, veins typically appear blue in color. This has led to a common misconception that venous blood is blue before it is exposed to air. Another reason for this misconception is that medical charts always show venous blood as blue in order to distinguish it from arterial blood which is depicted as red on the same chart.

The blood of horseshoe crabs is blue, which is a result of its high content in copper-based hemocyanin instead of the iron-based hemoglobin found, for example, in humans


http://en.wikipedia.org/wiki/Blood

clarissa !!
26-05-2007, 10:57 PM
if you put your hand up to a bright light, your hand shines through red unless your really fat, then it wont.

so yeah your bloods red?

Mentor
26-05-2007, 11:43 PM
Blood is never blue, its ether red or dark red. Deoxigneated blood is only drawn blue in text books so it dosnt confuse stupid people.

You
26-05-2007, 11:45 PM
if you put your hand up to a bright light, your hand shines through red unless your really fat, then it wont.

so yeah your bloods red?
thats why i couldn't see. :(

Dentafrice♥
26-05-2007, 11:46 PM
Blood is a highly specialized circulating tissue consisting of several types of cells suspended in a fluid medium known as plasma. The cellular constituents are: red blood cells (erythrocytes), which carry respiratory gases and give it its red color because they contain hemoglobin (an iron-containing protein that binds oxygen in the lungs and transports it to tissues in the body), white blood cells (leukocytes), which fight disease, and platelets (thrombocytes), cell fragments which play an important part in the clotting of the blood.

Medical terms related to blood often begin with hemo- or hemato- (BE: haemo- and haemato-) from the Greek word "haima" for "blood." Anatomically, blood is considered a connective tissue from both its origin in the bones and its function.


Red

Shawnstra
26-05-2007, 11:47 PM
Interesting. I'm not sure too though. Blood isn't blood without oxygen isn't it?

Mentor
26-05-2007, 11:56 PM
Interesting. I'm not sure too though. Blood isn't blood without oxygen isn't it?
Only red blood cells have anything to do with oxigen, and the rest of the blood, is still blood. Also when blood passes through an organs capillaries, its oxigen content is removed to power the said organ. Although in true within the body the red blood cells are never completely without oxygen content, they just have very little on there way back to the lung.
But regaurdless of oxigen content, blood is still blood o.0

Dentafrice♥
26-05-2007, 11:58 PM
:o, not sure eiver you've losted me

CrazyColaist
27-05-2007, 12:01 AM
i neva knew that.

Dentafrice♥
27-05-2007, 12:05 AM
knew what

hadouken!
27-05-2007, 12:25 AM
Yeah if u mix like skin and blood togeva it goes blue and pixies fly around and make it twinkle

Mentor
27-05-2007, 12:32 AM
Yeah if u mix like skin and blood togeva it goes blue and pixies fly around and make it twinkle

WTH you on about o.0

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