The superior vena cava and the inferior vena cava are the largest veins in the body. They take deoxygenated blood to the right atrium of the heart. The difference between the two veins is that the superior vena cava is above the inferior vena cava, causing the superior vena cava to take blood from the upper body, and the inferior vena cava to take blood from the lower body.
The Pulmonary vein takes oxygenated blood away from the lungs.
The Aorta pumps blood directly from the heart to the other arteries. WebMD's Aorta Anatomy Page provides a detailed image and definition of the aorta. Learn about its function and location as well as conditions that affect the aorta.
FUN FACT!: The Aorta is the largest artery in the body, extending from the heart, all the way down to the abdomen. It is a foot long.
VIDEO ON THE HEART Learn how blood flows through the heart, and understand the difference between systemic and pulmonary blood flow. Rishi is a pediatric infectious disease phy...
The pulmonary arterie takes deoxygenated blood to the lungs.
Descending aorta. The descending aorta is the part of the aorta between the arch of the aorta and the area whe the aorta splits into the iliac arteries.

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