Varicose Vein - An abnormal swelling and tortuosity especially of the superficial veins of the legs.
 
Veins - The vessels carrying blood toward the heart. Veins (with the exception of the pulmonary vein) carry dark, red (unaerated) blood from other parts of the body to the heart.
 
Vena Cava, Inferior - The principal vein that receives the blood from the lower limbs pelvic area abdomen and returns that blood to the right atrium of the heart.
 
Vena Cava, Superior - The principal vein that returns blood from the head and neck, upper limbs, and chest back into the right atrium of the heart.
 
Ventricle - The paired (right and left) more muscular chambers of the heart that pump blood into the pulmonary (right ventricle) and systemic (left ventricle) circulation.
 
Vessel - Canal, duct or tube that conveys the fluids of the body.
 
Viral Myocarditis - Inflammation of the heart muscle that is caused by an infection with a virus. Coxsackie B is most common in the U.S.A., but Coxsackie A, influenza, rubeola, rubella, Adenovirus, HIV and echoviruses can all cause myocarditis.