The smallest veins in the body are called Venules.
small saphenous
There are small dangers in any procedure, but vein treatments are generally very safe. Talk to her doctor about the specific threats with her procedure.
superior mesenteric vein
small cardiac vein
Small vein, usually offshoot of a bigger vein
small cardiac vein.
They make a small incision into the leg (and vein), insert a special tool through the vein, and then peel it out.
Inside the body it would be a Capillary, vein or an artery, Capillary being the smallest
The small cardiac vein
The popliteal vein carries blood from the knee to the thigh and calf muscles and ultimately to the heart. The vein is formed from the merging of the two posterior tibial veins and ends as it merges in to the femoral vein.
the bllod from small intestine drains into portal vein and which gives that blood to liver
Empties into coronoary sinus which empties into the right atrium