The right side of the heart is filled with oxygen-depleted blood from the venous system, and it pumps this blood into the lungs where it is oxygenated.
From the us.cnn.com
Instead of venous blood sampling, the CoaguChek system provides accurate results from a single drop of capillary blood from the fingertip within on minute.
From the al.com
Overexpansion of blood plasma is another way of raising hydrostatic pressure in the venous system.
From the washingtonpost.com
Many drugs are given by intravenous injection and use the body's venous system to reach their target, but tumours in bone tend to have a low blood supply.