Final answer:
The tongue features various papillae for taste and sensation, with fungiform papillae containing taste buds and filiform papillae aiding in food manipulation.
Step-by-step explanation:
The human tongue has several types of papillae that serve different functions related to taste and sensation.
Fungiform papillae are mushroom-shaped structures found across the tongue, with a higher density towards the rear and fewer on the tip and sides.
These papillae are key to taste as they contain taste buds. Surrounding them, filiform papillae are long and thin with touch receptors that assist in the manipulation of food.
They create an abrasive surface, similar to that of a cat's tongue, which is mechanically functional.
Other types of papillae include foliate papillae, which have taste buds and are located in folds along the sides and back of the tongue, and circumvallate papillae, located in an inverted 'V' shape at the back of the tongue containing numerous taste buds as well.