I’ve long had doubts about my idea for this one. I had first selected venae cavae (the plural of vena cava) many months ago, but I wasn’t sure it was the best option. I hemmed and hawed for a ridiculously long time. There are obviously a lot of veins in the body (about 30,000 MILES worth in each person), and plenty of other anatomical terms that start with V, but I kept coming back to the biggest veins of all. And I’m pretty happy with the results, so let’s check it out.

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The superior vena cava and inferior vena cava, collectively called the venae cavae (very fun to say: VEE-nee CAY-vee), return deoxygenated blood from the body to the heart, specifically to the right atrium. The right side of the heart then pumps the blood on to the lungs to get rid of carbon dioxide and pick up oxygen. The…

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