The Seahorse In Your Brain: Where Body Parts Got Their Names. December 16, 2016 1:55 PM ET. By . Joy Ho , ... Hold your hand with your thumb perpendicular to your index finger, ...

The name hippocampus comes from the Greek word for seahorse. It's a part of the brain involved in emotion and memory. Image: Joy Ho/NPR ...

Ancient anatomists named body parts after things they resembled in real life. So you've got a rooster comb in your skull and a flute in your leg. The Seahorse In Your Brain: Where Body Parts Got ...