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UNIVERSITY OF NIGERIA COMMUNITY | GENERAL COMMUNITY | General Discussions | Did you know? | Topic: If blood is red, why are veins blue?
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ActionMan
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« on: January 07, 2009, 11:32:17 AM »
Blood is bright red in its oxygenated form and a dark red in deoxygenated form. In simpler terms, it is bright red when it leaves the lungs full of oxygen and dark red when it returns to the lungs for a refill. Veins appear blue because light penetrating the skin is absorbed and reflected in high energy wavelengths back to the eye. Higher energy wavelengths are blue.
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DJ Gbala
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« Reply #1 on: January 30, 2009, 09:55:40 AM »
@ actionman, boy ur damn funny(i bet u r a jester). So tell me, did u ask a question seekin 4 an answer or what? U asked a question only 4 u 2 answer ur question, why?
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« Reply #2 on: February 19, 2009, 19:32:26 PM »
I will ask my biology teacher..
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« Reply #3 on: February 19, 2009, 20:23:24 PM »
Quote from: adim2 on February 19, 2009, 19:32:26 PM
I will ask my biology teacher..
Nooo U dont have to!! Remember, Im here!!!!!!!
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adim2
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« Reply #4 on: February 19, 2009, 20:34:49 PM »
I ask you then, is that true?
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sam
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« Reply #5 on: March 11, 2009, 20:09:19 PM »
 hello ,is that a question or a contribution pls make my clear
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phronesis
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« Reply #6 on: March 11, 2009, 20:58:52 PM »
I think is just a "did you know" - the guys asked the question and answered it himself. That's where the confusion is I guess.
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« Reply #7 on: March 12, 2009, 12:14:41 PM »
i guess  he was trying 2 give us an information.thanks guy.
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