whats the colour of blood?

Question

whats the true colour of blood?

Answer 1

Human blood is red. Those who tell you it is blue until it hits the air are wrong. There are movies of probes inside blood arteries and veins - it is red. The returning blood is darker because it has lost oxygen. (Therefore you are alive.) It is the darker returning blood that we generally see near the surface of our skin.

Answer 2

Blood has four main components:

Platelets (pink, smaller) less abundant, about 13% total TBV

White Blood Cells (Leukocytes) Transparent but may appear white in groups - comprise aprx 3% TBV

Red Blood Cells (erythrocytes) Comprise about 55% of TBV

Blood is red, in varying shades. Highly oxygenated blood is bright red, almost luminescent in nature, usually coming direct from the lungs after a big inhalation of oxygen by the host body.

Depleted blood that has little or no hemoglobin left and is usually en route back to the heart for refreshments is dark red and viscous.

If you want to know what color 'dead ' blood cells are, ask A coroner, I have not been able to find that tid-bit of info.

An isolated red blood cell with no hemoglobin still is red, but a very dark red.

Conclusion - any mammalian crature containing hemoglobin dependant blood has RED blood. It is red. HOWEVER----

There is a fish, the Antarctic Ice Fish, that has NO HEMOGLOBIN! no kidding. It dissolves it's oxygen directly into its tissues and therefore has blue blood. Tell that to the country clubs of Europe! A blue blood, truly! LOL

Answer 3

Your blood is red. Bright red in the arteries and a darker red in the veins. The arteries send oxygenated blood from the lungs to the muscles etc and when the oxygen in the blood has been used then it returns via the veins to the heart and lungs to begin the process again. The blue that you see through the skin is the colour of the blood vessels.

Answer 4

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.

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.

Answer 5

The true color of blood that has good oxygen is a bright red. If the blood doesn't have much oxygen, it's a darker red and as you see it in your veins, it looks blue, but it isn't. I hope this helps.

Answer 6

Depending on its oxygen content, blood is either oxygenated ( = blood enriched with oxygen) or deoxygenated (Blood lacking oxygen). Oxygenated blood is bright red whereas deoxygenated blood is dull red (NOT blue as is often used in textbook illustrations).

Blood is red in colur due to the red blood cells (scientifically knwon as erythrocytes) which contain haemoglobin, a molecule that carries oxygen around.

Answer 7

arterial blood is bright pillar box red due to oxgen from the lungs - it is on its way to the muscles which need the oxygen. Venous blood is dark red/purple as it has no oxygen left, it is going back to the lungs

Answer 8

The blood in the vein when it is plumping around the body looks blue because the light reflects it back to our eyes blue.
when when cut ourselves the oxygen in the air automatically turns it red because of a reaction with the blood cell.

Answer 9

The colour of blood containing a lot of oxgens is light red
not containing oxgens is dark red

Answer 10

Red