(Waht do we need to know?)How does the tongue taste different tastes?

1. New node

2. What if we have no tongue?

3. What is a tongue?

4. What are taste-buds on the tongue

4.1. What do taste-buds do?

4.2. What if we have no taste-buds?

4.3. What can affect the taste-buds?

5. How many different taste are there?

6. How are taste-buds form?