Final answer:
The tongue has various types of papillae for gustation, with different papillae located in specific regions, contributing to the sense of taste.
Step-by-step explanation:
Similar to the blind spot in the retina, the tongue has a "blind spot" in the center of the tongue. The taste buds on the tongue are located on small bumps called papillae for gustation, which are sensitive to chemicals in ingested food or drink.
These papillae are found in different regions of the tongue, with different types performing different roles. For instance, the foliate papillae and circumvallate papillae are found toward the edges and the back of the tongue, respectively, and are involved in the gustation sense of taste.