and impairment of the venous valves. Situations increasing the chances of developing varicose veins are genetic ...

The blood in the veins of the legs works against gravity in order to return upwards to the heart. The blood is moved up towards the heart by one-way valves in the veins. When the leg muscles contract ...

Varicose veins, on the other hand, are caused by weak or damaged vein walls and valves. They could form whenever the blood ...

A series of one-way bicuspid valves prevents refluxing of blood back into the leg. As blood is ejected from the deep veins, venous pressure drops allowing blood to flow from the superficial system ...

For this process to occur, veins contain one-way valves that open and close, helping the blood flow against gravity toward the heart. If these valves become damaged and do not fully close ...

It is used to remove a damaged vein and prevent complications of vein damage. If several valves in a vein and the vein itself are heavily damaged, the vein (or the diseased part of the vein) is ...

It's called deep vein thrombosis, or DVT. All our veins have small valves powered by the muscles around them. They keep blood moving toward the heart, instead of flowing backward inside veins.

Engineers at Georgia Tech developed the prosthetic vein valve shown here to help improve the lives of those suffering from a condition known as chronic venous insufficiency. Disclaimer ...