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Why do veins appear on legs

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Varicose veins are enlarged and distended veins. They can occur anywhere in the body, but are particularly common in the legs. [ Source: http://www.chacha.com/question/why-do-veins-appear-on-legs ]
More Answers to "Why do veins appear on legs"
Why do varicose veins and spider veins usually appear in the legs...?
http://www.renoveinclinic.com/FAQ.html
The force of gravity, the pressure of body weight, and the task of carrying blood from the bottom of the body up to the heart make legs the primary location for varicose and spider veins. Compared with other veins in the body, leg veins hav...
How can i prevent spider veins and cellulite from appearing in my...?
http://answers.yahoo.com/question/index?qid=20090426202552AA1xfMk
There isn't all that much you can do. I've had these as far as I can remember. Back when I was 14 - 18 years old, I worked out 2 - 3 hours a day, ate 300 - 600 calories daily and was so thin that size 0 pants were loose on me. (It was extre...
Why do varicose and spider veins usually appear in the legs??
http://www.myhealthcollection.com/veins.htm
The veins in the legs have the toughest job of carrying blood back to the heart. They endure the most pressure -- pressure that can overcome the strength of these one-way valves. The force of gravity, the pressure from body weight, and the ...

Related Questions Answered on Y!Answers

Why do veins appear blue beneath skin when blood is red?
Q: When one sees a vein through their skin, in arms and legs for example, the veins appear blue in color.
A: In humans and other hemoglobin-using creatures, oxygenated blood is a bright red in its color. 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 in light-skinned people. This has led to a common misconception that before venous blood is exposed to air it is blue. The appearance of blood as dark blue is a wavelength phenomenon of light, having to do with the reflection of blue light away from the outside of venous tissue if the vein is @ 0.02in deep or more. This is due to the difference in color between deoxyhemoglobin and oxyhemoglobin; the red color ultimately originates from the iron atom in heme. When red blood cells die, the hemoglobin within them is released and broken up: the iron in hemoglobin is salvaged, transported to the bone marrow by a protein called transferrin and used again in the production of new red blood cells; the remainder of the hemoglobin becomes a chemical called bilirubin that is excreted into the bile which is secreted into the intestine, where it gives the feces their characteristic yellow-brown color.Veins are closer to the surface of the skin and so you are able to see them if you have light skin. Arteries can sometimes be seen in a light-skinned baby."Blue blood" in the sense of "aristocracy" is actually a direct translation of the Spanish phrase "sangre azul." The oldest families of Castile in Spain prided themselves on the "purity" of their lineage, believing it never to have been "contaminated" by Moorish, Jewish or other "foreign blood," and as evidence offered the blueness of their veins against their fair complexions. In truth, their blood was the same color as everyone else's, and it was simply the lightness of their skins that made their veins appear blue, but "sangre azul" was taken into English around 1834 as "blue blood" and has been a synonym for "nobility" or "aristocracy" ever since.
what goes wrong when varicose veins appear on legs?
Q:
A: The valves that help get blood back to the heart, fail & therefore, blood pools and causes the vein to bulgeRN
What causes spider veins to appear on the legs?
Q:
A: There are a number of causes for these. Mine appeared during hormonal changes. Here is a good link giving information.Good luck
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