we have one person who thinks it is red when not exposed to oxygen and another who thinks it is clear what is it?
2006-10-27 13:00:20 · 30 answers · asked by cheryl d 1 in Health ➔ Diseases & Conditions ➔ Respiratory Diseases
Blood is red, no matter what, it is red. Haven't you ever gotten your blood drawn, those tubes are free from air, no oxygen blood is red going into them, and when you cut yourself it's read. Registered Nurse here, believe me I have seen lots and lots and lots of blood, in diffeent scenerios. BLOOD IS RED
2006-10-27 13:04:18 · answer #1 · answered by Strawberry Pony 5 · 2⤊ 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.
2006-10-27 20:04:40 · answer #2 · answered by sugarplum9903 4 · 2⤊ 0⤋
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 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.
2006-10-27 20:08:46 · answer #3 · answered by Druid2020 3 · 3⤊ 0⤋
When blood is expose to oxygen it becomes bright red. Blood that is not exposed to oxygen is blue (sort of) - just look at the veins in your wrists. Actually, blood taken in vacuum tubes is dark red. Blood is never clear. Plasma is translucent, but even that is not completely clear.
2006-10-27 20:47:10 · answer #4 · answered by Gypsy Girl 7 · 1⤊ 1⤋
Its red.The clear stuff in blood is called plasma. This helps your red cells, white cells and platelets all move around your body without smashing in to one and other.If you leave a test tube filled with blood to stand it will separate with the clear plasma on top and the cells and platelets on the bottom.
This can be seen as a misconception that the blood that was exposed to air at the top of the test tube turns clear.
Its not. the plasma is lighter. imagine it as a snow globe
2006-10-28 15:32:15 · answer #5 · answered by ? 2 · 2⤊ 0⤋
Blood is red when exposed to air and inside our bodies.
2006-10-27 20:14:12 · answer #6 · answered by margarita 7 · 2⤊ 0⤋
It depends whether the blood is carrying oxygen or has delivered it to the relevant organs etc. Oxygenated blood (that still carrying the oxygen) is bright red, deoxygenated blood (travelling back to the lungs) is deep red.
2006-10-28 04:08:40 · answer #7 · answered by kaleidoscope_girl 5 · 1⤊ 1⤋
It is red. Ask anyone who has donated blood. Blood donations can not be exposed to air in case of contamination.
The clear blood thing is a myth.
2006-10-27 20:03:41 · answer #8 · answered by Darkstar 2 · 2⤊ 1⤋
blood is deep dark red. Maybe the person who said clear is thinking of plasma.
2006-10-27 20:09:47 · answer #9 · answered by stacey t 2 · 2⤊ 0⤋
It's more of a dark purple. Intervenous blood is darker but gets redder when exposed to air.
2006-10-27 20:03:32 · answer #10 · answered by infernal_seamonkey 4 · 1⤊ 1⤋