They bring de-oxygenated blood from other parts of the body to the heart, where it is pumped to the lungs to be oxygenated and sent out again through the aorta of the heart to the arteries.
The superior Vena Cava collects the de oxygenated blood from the top part of your body such as your head and arms and brings it into the right atrium :).
Superior vena cavaInferior vena cavacoronary sinus
Inferior vena cava
Inferior vena cava and superior vena cava.
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.
There are two main blood vessels into which all blood returning to the heart drains, the superior and inferior vena cava. The superior vena cava will drain blood from the upper part of the body into the right atrium and the inferior vena cava will drain blood from the lower part of the body into the right atrium.
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.
Through Superior vena cava & inferior vena cava . The blood from anterior part of the body is taken to heart through superior vena cava,the blood from posterior part of the body is taken through inferior vena cava.
Superior and 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 also known as the anterior Vena Cava.
The junction of the Superior and Inferior Vena Cavae. The Superior Vena Cava brings blood from the upper body, and the Inferior Vena Cava brings blood from the lower body. They meet at a junction, and enter the heart.
Primarily, the superior Vena Cava which generally draws blood from the upper part of the body, the Inferior Vena Cava will draw blood from the lower half. The Aorta will be the main vessel(s) to pump blood OUT of the heart.