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What are blood vessels? ... Blood vessels are intricate networks of tubes that transport blood throughout the entire body. ... Microcirculation deals with flow of blood from arterioles to capillaries or sinusoids to venules.
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biology.about.com/library/organs/heart/blblood.htm
biology.about.com/library/organs/heart/blblood.htm
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Veins receive blood from the capillaries after the exchange of oxygen and carbon dioxide has taken place. Therefore, the veins transport waste-rich blood back to the lungs and heart. It is important that the waste-rich blood keeps moving in the proper direction and not be allowed to flow backward.
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www.fi.edu/learn/heart/vessels/veins.html
www.fi.edu/learn/heart/vessels/veins.html
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There are three varieties of blood vessels: arteries, veins, and capillaries. During blood circulation, the arteries carry blood away from the heart. The capillaries connect the arteries to veins. Finally, the veins carry the blood back to the heart.
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www.fi.edu/learn/heart/vessels/vessels.html
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Blood clots are the clumps that result from coagulation of the blood (blood hardens to from liquid to solid). A blood clot that forms in a blood vessel or within the heart and remains there is called a thrombus.
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www.nlm.nih.gov/medlineplus/ency/article/001124.htm
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Capillaries are where the blood gives up oxygen and nutrients to the tissues, and receives carbon dioxide and wastes back from the tissues. Then, the vessels begin to collect together into larger and larger veins, which return blood to the heart.
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www.nlm.nih.gov/medlineplus/ency/article/004006.htm
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Blood is meant to flow; if it becomes stagnant there is a potential for it to clot. The blood in veins is constantly forming microscopic clots that are routinely broken down by the body. If the balance of clot formation and resolution is altered, significant clotting can occur.
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www.medicinenet.com/deep_vein_thrombosis/article.htm
www.medicinenet.com/deep_vein_thrombosis/article.htm
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Two types of blood vessels carry blood throughout our bodies: The arteries carry oxygenated blood (blood that has received oxygen from the lungs) from the heart to the rest of the body. The blood then travels through the veins back to the heart and lungs, where it receives more oxygen.
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kidshealth.org/parent/general/body_basics/blood.html
kidshealth.org/parent/general/body_basics/blood.html
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Deep vein thrombosis is a blood clot that forms in a vein deep in the body. Most occur in the deep veins of the thigh or lower leg. Sometimes these clots can move to the lungs, which is called pulmonary embolism.
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www.nhlbi.nih.gov/health/dci/Diseases/Dvt/DVT_WhatIs.ht...
www.nhlbi.nih.gov/health/dci/Diseases/Dvt/DVT_WhatIs.html
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