2006-10-27 10:06:29 · 17 answers · asked by jolene_vdm 1 in Science & Mathematics ➔ Biology
blue while in our veins, because they are devoid of oxygen. Veins carry blood back to the heart to receive more oxygen. While in arteries, blood is red, because it now has oxygen, and will have it until it delivers that oxygen to a part of the body.
2006-10-27 10:08:04 · answer #1 · answered by vanman8u 5 · 1⤊ 3⤋
I work in a level 2 trauma ER, as a phlebotomist. My entire job consists of drawing blood, running tests, and starting IV's. Blood is always red. Always. Veins are blue, so perhaps that's where the strange myth comes from that blood is blue until it's exposed to oxygen. Actually, venous blood is deoxygenated, so it's dark red (perhaps some people mistake this for blue?). Arterial blood is bright red (fire hydrant color) because it is oxygenated.
2016-05-22 01:32:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Actually the color of blood in your veins is red. Your skin diffracts light and this makes it appear blue-green from the outside. The hemoglobin which carries oxygen in your blood gives it its red color due to iron that it contains.
A common misconception is the oxygen depleted blood in the veins is blue and oxygen rich blood in the arteries is red. The truth is that blood in the veins is deep red due to waste products while arterial blood is a brighter red.
2006-10-27 10:16:49 · answer #3 · answered by blue_halo462 1 · 3⤊ 0⤋
It appears blue but it actually deep red. It appears blue becuase of your are looking at it through your skin. It is actually red...This is because the blood that travels through our veings is dioxygenated. Look at your arm. do you see something blue? That's the blood in your vein.... I should probably say dioxygenated blood.
Were you not sure of what that blue 'stream' on your arm was?? Well, now you are! How old are you?
2006-10-27 12:13:04 · answer #4 · answered by lemon drops 3 · 1⤊ 0⤋
Blood is deep red in our veins and venules. It's a brighter red in our arteries and arterioles.
2006-10-27 16:22:12 · answer #5 · answered by Phoenix 2 · 0⤊ 0⤋
blood is always red - bright red when it is oxygenated and a darker red when it's lacking oxygen. Deoxygenated blood just **looks** blue because you're seeing it through your skin.
Read more about blood here
2006-10-27 10:28:54 · answer #6 · answered by Anonymous · 2⤊ 0⤋
Blue
2006-10-27 10:15:41 · answer #7 · answered by tweeteebrrd 3 · 0⤊ 2⤋
A common mistake is saying that it's blue. It's not.
Your blood is always red, but will appear blue in your veins.
2006-10-27 10:15:53 · answer #8 · answered by Kaity 2 · 0⤊ 2⤋
It's deep red, with a tinge of purple. Not blue.
And for the record, blood picks up oxygen from your LUNGS not your heart.
2006-10-27 10:17:31 · answer #9 · answered by Sandy Sandals 7 · 0⤊ 2⤋
It's dark red.
Arterial blood is a brighter red.
2006-10-27 10:44:18 · answer #10 · answered by Anonymous · 2⤊ 0⤋