We just learned about the Lingual Papillae.
Another part of the mouth is the Taste Buds.
The lingual papillae are the little bumps on the tongue, and on most of those little bumps are what we call taste buds, or taste receptors.
The taste receptors or buds are the tongue are what tell your mouth what flavor something is.
There are five different taste types: salty, sour, bitter, sweet and umami.
The human tongue usually has from 2,000 to 8,000 taste buds.
(from: wikipedia - taste bud)
Kid Facts - Blast from the past: Phalangeal Ligaments
