is it true that your blood is blue?

Answer 1

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 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.

Answer 2

No. In ye olde days (in UK) the rich folks spent most of their time indoors and so they were very pale skinned and their veins showed in various places. These veins appeared to be blue - hence the expression - blue blooded - referring to the aristocracy and royalty.

The blood in the veins is on its way to the heart and is de-oxygenated and therefore a dirty red colour - the blood in arteries is on its way from the heart and in oxygenated and therefore bright red.

Therefore my blood is red

Answer 3

It's incredible how many people answering here say that unoxigenated blood is blue. Did these people ever go to school? LOL

So, to answer your question, blood is NEVER blue. Blood in veins is dark red, blood in arteries is bright red. Veins appear to be blue through skin because our skin filters out red colour.

Answer 4

yes, deoxygenated blood returning to the heart through your veins is blue. you can see the blue veins in your wrists or where ever. but the blood instantly turns red once it comes in contact with oxygen, which is why you will never your blood when its blue

Answer 5

It has a blue tinge to it when it is depleted of oxygen. That is why your veins tend to appear blue on the surface of your skin. Once the blood has oxygen from your lungs or the air if you cut yourself it turns red.

Answer 6

Oxygen starved blood is blue, oxygen rich blood is red.

Answer 7

It not true. Blood is made of two things, liquid and solid.
Liquid is called serum or plasma. Solid is made of cells.
There are three kinds of cells, red blood cells, white blood cells and plateletes. Red blood cells contains hemoglobin. This hemoglobin is red in color. It combined with oxygen. When your blood is saturated with oxygen it looks bright red. When it is not saturated with oxygen it is called deoxygenated blood, less bright. People called it blue blood. This is predominent blood in veins, vessels carring deoxygenated blood.

Answer 8

not really the cell walls are blue, your blood is two different shades of red depending on if its oxygenated or deozygenated.

oxygenated - bright red
deoxygenated - dark red

it oxygenates by passing through the veins on the air sacs in your lungs and carries the oxygen to other parts of your body

Answer 9

Deoxygenated blood (on the way back to the heart) appears blue do to the lack of oxygen.

Answer 10

blood that runs through our veins is dark red and because it lacks oxygen it is bluish in contrast to arterial blood ,which is rich in oxygen ,hence red.