the major blood vessel that carries blood from the gastrointestinal tract and spleen to the liver; specifically the hepatic portal vein

blood that has exchanged oxygen for carbon dioxide and waste products in the tissues, and is returning through the veins to the heart

The blood vessels that carry oxygen-rich blood from the lungs back to the left atrium of the heart

inflammation of a vein

A large vein that carries blood from the body back into the heart's right atrium, divided into the superior and inferior vena cava.

a very small vein, especially one collecting blood from the capillaries and connecting to larger veins

An injection of medicine or fluid directly into a vein.

an intravenous drip; intravenous infusion

a tumor or swelling of a vein

a medical condition where a blood clot forms inside a vein; if the clot moves to the heart or lungs it can be life-threatening and usually requires treatment with blood thinners

the large veins in the neck that return blood from the head and neck to the heart; includes both the internal and external jugular veins

swelling of the veins within the scrotum

popliteal vein; the blood vessel located behind the knee

the act of taking drugs by injection into a vein; IV drug use

the accumulation of blood in a body part due to an obstruction in its venous return

Medical condition where veins become swollen, twisted, or dilated due to poor blood flow; often occurs in the legs or anal canal and is common in the elderly or those who stand for long periods.

delivered by means of an injection into a vein