We just learned about the Circumvallate Papillae.
Another part of the tongue is the Median Sulcus.
Right on the top middle of your tongue there is a line going all the way from front to back.
This line is the median sulcus, and it divides the tongue into a left and right side.
It's sort of like a line in a piece of paper that's been folded, and most people can fold their tongue in half right there inside their mouth.
With the tongue folded right on that line, sometimes it can help when eating food.
(from: wikipedia - tongue)
Kid Facts - Blast from the past: Superior Tibiofibular Ligaments
