Trigeminal Ganglion

**Definition:** The semilunar-shaped ganglion containing the cells of origin of most of the sensory fibers of the trigeminal nerve. It is situated within the dural cleft on the cerebral surface of the petrous portion of the temporal bone and gives off the ophthalmic, maxillary, and part of the mandibular nerves.

**Tree numbers:** - A08.340.390.850 - A08.800.350.850 - A08.800.800.120.760.825

**Synonyms:** - Gasser's Ganglion - Gasserian Ganglion - Semilunar Ganglion - Trigeminal Ganglia