There are two the superior (from the head) and inferior (from the body) vena cava.
The vessel that brings blood back to the right atrium is the superior vena cava and the inferior vena cava.
oxygenated blood
The superior vena cava conducts blood from the head to the right atrium.
Blood that comes in to the right atrium comes from the pulmonary vein.
capilaries
th blood vessel that goes to the right atrium is cava
The vessel that brings blood to the heart from the trunk and pelvic region is the inferior vena cava. It is one of the main blood vessels in the body, responsible for carrying deoxygenated blood from the lower half of the body to the right atrium of the heart.
right atrium
The Superior and inferior vena cava.
The superior vena cava
blood first enters the heart through the right atrium.
vena cava (superior and inferior)