Veins are blood vessels that carry blood toward the heart. Most veins carry
deoxygenated blood from the tissues back to the heart; exceptions are the
Veins return blood to the heart from all the organs of the body. The large veins
parallel the large arteries and often share the same name, but the pathways of
Apr 17, 2008 ... a likely response is that they're blue because the blood in veins is ... While it's
true that venous blood vessels carry a lower concentration of ...
Oct 16, 2012 ... Blood is always red, actually. Veins look blue because light has to penetrate the
skin to illuminate them, blue and red light (being of different ...
Enlarged and twisted veins close to the surface of the skin are a sign of a milder
form of ... A blood clot in a deep vein that causes your vein valves to fail and may
Normally, one-way valves in your leg veins keep blood moving up toward the
heart. When the valves do not work properly, they allow blood to back up into the
Nov 9, 2015 ... Venous insufficiency is a condition where the flow of blood through the veins is
blocked, causing blood to pool in the legs. It's often caused by ...
Arteries distribute oxygenated blood throughout the body, while veins carry
deoxygenated blood to the heart. Pulmonary arteries and veins function
The cardiovascular system consists of the heart, blood vessels, and the
approximately 5 liters of blood that the blood vessels transport. Responsible for ...
Superficial thrombophlebitis is an inflammatory condition of the veins due to a
blood clot just below the surface of the skin. It usually occurs in the legs, but it can