4b. why would the vena cava be classified as a vein? all veins carry blood back to the heart, except for the pulmonary vein. the vena cava empty into the right side of the heart, so they technically bring blood to the
1 answer:
The answer is that <span>all
veins carry blood back to the heart, except for the pulmonary vein. the
vena cava empty into the right side of the heart, so they technically
bring blood to the
</span>main atrium.
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