Hello,
I see you are asking "What is superior vena cava syndrome?"
Superior vena cava syndrome (SVCS) is a group of problems caused when blood flow through the superior vena cava (SVC) is slowed down. The SVC is a large vein that drains blood away from the head, neck, arms, and upper chest and into the heart. SVCS is most often seen in people who have cancer.
For more information, you can visit this URL -
heartandstrokehealth. com/condition/superior-vena-cava-syndrome/c/35234
SVCS is also called superior mediastinal syndrome and/or superior vena cava obstruction.
superior vena cava
Superior vena cavaInferior vena cavacoronary sinus
postcava - inferior vena cava precava - superior vena cava
Inferior vena cava
The superior vena cava brings deoxygenated blood into the heart, into the right atrium. The superior vena cava is formed by union of the right and left brachiocephalic (innominate) veins.
The superior vena cava is responsible for delivering deoxygenated blood from the upper portion of your body to the heart.
The Largest Vein in the Heart is the Coronary Sinus, which runs in the atrioventricular groove around the posterior and lateral aspect of the Right Atrium. The Second largest vein in the heart is the Great Vein which lies anteriorly and runs with the Left Anterior Descending or Anterior Interventricular Artery, commonly referred to as the LAD or widow maker.
Inferior vena cava and superior vena cava.
The superior vena cava.
Your superior vena cava brings blood into the heart from the top section of your body, whereas the inferior vena cava brings the blood in from the bottom half of the body.
The upper, or superior vena cava is a pink-ish colour.