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Veins (/veɪn/) are blood vessels in the circulatory system of humans and most other animals that carry blood towards the heart. Most veins carry deoxygenated...

Deep vein thrombosis (DVT) is a type of venous thrombosis involving the formation of a blood clot in a deep vein, most commonly in the legs or pelvis...

The blood-vein (Timandra comae) is a moth of the family Geometridae. The species was first described by Anton Schmidt in 1931. It has a scattered distribution...

The portal vein or hepatic portal vein (HPV) is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to...

The jugular veins are veins that take blood from the head back to the heart via the superior vena cava. The internal jugular vein descends next to the...

sternum. The brachiocephalic veins are the major veins returning blood to the superior vena cava. The left brachiocephalic vein is about 6cm, more than twice...

pulmonary veins are the veins that transfer oxygenated blood from the lungs to the heart. The largest pulmonary veins are the four main pulmonary veins, two...

formation of a blood clot inside a blood vessel, obstructing the flow of blood through the circulatory system. When a blood vessel (a vein or an artery)...

In human male anatomy, the dorsal veins of the penis are blood vessels that drain the shaft (corpora cavernosa, corpus spongiosum), the skin and the glans...

Portal vein thrombosis (PVT) is a vascular disease of the liver that occurs when a blood clot occurs in the hepatic portal vein, which can lead to increased...

vein is a paired large vein, one on either side of the body, that is responsible for draining blood from the upper extremities, allowing this blood to...

umbilical vein is a vein present during fetal development that carries oxygenated blood from the placenta into the growing fetus. The umbilical vein provides...

blood from the foot, leg and thigh to the deep femoral vein at the femoral triangle. The great saphenous vein originates from where the dorsal vein of...

alternative path for blood to the right atrium when either of the venae cavae is blocked. The azygos vein transports deoxygenated blood from the posterior...

veins in the renal circulation, are large-calibre veins that drain blood filtered by the kidneys into the inferior vena cava. There is one renal vein...

vein. It drains blood from the leg. It can be assessed using medical ultrasound. It can be affected by popliteal vein entrapment. The popliteal vein is...

(small veins), and other veins. The circulatory system is closed in vertebrates, which means that the blood never leaves the network of blood vessels...

circulation is the movement of blood through a network of cerebral arteries and veins supplying the brain. The rate of cerebral blood flow in an adult human is...

The inferior vena cava is a large vein that carries the deoxygenated blood from the lower and middle body into the right atrium of the heart. It is formed...

The deep femoral vein, deep vein of the thigh or profunda femoris vein is a large deep vein in the thigh. It collects blood from the inner thigh, passing...