Show pageBacklinksCite current pageExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. Grossly, the venous system is composed of venules and small and great veins, which serve to return blood from tissues to the heart (see the image below). The systemic venous system brings deoxygenated blood from tissues and organs back to the right atrium of the heart, whereas the pulmonary venous system brings oxygenated blood from the pulmonary circulation back to the left atrium of the heart. venous_drainage.txt Last modified: 2024/06/07 02:55by 127.0.0.1