2006-09-19 15:45:37 · 11 answers · asked by Anonymous in Health ➔ Other - Health
blood is red, the color or red depends on how much oxygen is in it
2006-09-19 15:47:18 · answer #1 · answered by Coconuts 5 · 0⤊ 0⤋
Because blood is NOT blue. Blood is colored by the pigment hemoglobin, which is RED in color. There are different levels of oxygen depending upon where the blood is in your circulation; venous blood appears darker, arterial blood appears brighter (the former has less oxygen, the latter more). So broken capillaries are red because blood is red.
2006-09-19 23:00:25 · answer #2 · answered by medrecgal1973 5 · 0⤊ 0⤋
oxygen my friend....think about oxidation and iron.
When blood is inside your body it is sealed in a sort of vacuum. It is blue by textbook standards. Look at the veins and arteries along your wrist. I am certain you will see a few veins that appear green or a greenish blue through the coloration of your skin. Once the blood leaves the confinements of the body through a cut or laceration, making it visible to the eye. It will appear red because of the oxygen in the air, reacting with the content of your blood. It's almost instantaneous. It's very simular to leaving an iron rod out in the rain. It will rust and leave a red layer along the exterior.
2006-09-19 22:57:10 · answer #3 · answered by Anonymous · 0⤊ 0⤋
not all blood is blue. only the blood in the veins is blue because it is depleted of oxygen. the blood in your arteries is red. broken capillaries (even under the skin) appear red because they are what transfers oxygen rich blood into the cells and tissues of the body.
2006-09-19 22:59:43 · answer #4 · answered by tgee 2 · 0⤊ 0⤋
un-oxygenated blood is blue. As soon as blood touches air, it turns red, OR blood that has just come from your LUNGS is red. Your blood travels TO your heart through arteries (red) where it travels through your body transferring food and oxygen to all your cells. The unoxygenated blood then travels back to your heart through your veins (blue) where it returns to your heart and picks up oxygen from your lungs again.
At the capillaries is where this transfer takes place - and a brokeb capillary would expose the blood to oxygen, turning it red again.
2006-09-19 22:49:49 · answer #5 · answered by KB 6 · 0⤊ 0⤋
when air comes into contact with blood it turns red. a tube has air in it so the blood mixes with that and turns red.It happens upon leaving the body. You may think a syringe is empty but it is actually full of air. good question. one to think about
2006-09-19 22:51:22 · answer #6 · answered by Billy T 6 · 0⤊ 0⤋
Blood turns red when it hits oxygen.
2006-09-19 22:47:15 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Its very simple. The seconnddd blood is exposed to oxegen it turns red. Wouldnt it be cool to go on the moon and cut yourself!Blue Blood! awesome... id look forward to my period.
2006-09-19 22:48:33 · answer #8 · answered by clap your hands 2 · 0⤊ 0⤋
When it hits the air (oxygen is in the air), it instantly turns red. It's a chemical reaction.
2006-09-19 22:50:29 · answer #9 · answered by sugaladie77 2 · 0⤊ 0⤋
It's hard to explain--- but this article from discovery.com is awesome!
2006-09-19 22:48:18 · answer #10 · answered by dcgirl 7 · 0⤊ 0⤋