The trigeminal ganglion (also known as: Gasserian ganglion, semilunar ganglion, or Gasser's ganglion) is the sensory ganglion of each trigeminal nerve (CN V).
The trigeminal ganglion, also referred to as the Gasserian ganglion, semilunar ganglion, or Gasser's ganglion, serves as the sensory nerve center for each of the five cranial nerves.