![Diagram: Circumvallate papillae & taste buds on the human tongue](http://static.sciencelearn.org.nz/images/images/000/003/516/full/SSF_ITV_TASTE_Circumvallate.jpg?1674171051)
There are 9–14 circumvallate papillae on the back of the tongue arranged in a V formation pointing towards the throat. They are peg-like structures with a large number of taste buds arranged in tiers in troughs on their inner walls.
Image: The University of Waikato Te Whare Wānanga o Waikato