Because lymph sacs form from the venous system, they typically contain red blood cells.

Look, now I enter the great venous system bound for the right auricle of the heart.

Blood backs up into the systemic venous system, including the hepatic vein.

The venous system is also important in this equation.

The human arterial and venous systems develop from different embryonic areas.

The fluid is eventually absorbed into the venous system.

The first report published about the venous system appeared around 1967-1968.

In both modalities, blood drained from the venous system is oxygenated outside of the body.

The leg, then, must rely on the superficial venous system for drainage.

A bolus of the compound is injected into the venous system.