Sensory Root of the Trigeminal Nerve (CN V) in the Male Skull

Description

Centered on the internal base of a male skull, the sensory root of the trigeminal nerve (CN V) is shown coursing anteriorly from the lateral aspect of the pons toward the petrous part of the temporal bone. Just proximal to its divisions, the root expands into the trigeminal (Gasserian) ganglion within Meckel’s cave, positioned anteromedial to the trigeminal impression on the petrous apex and lateral to the cavernous sinus region. From the ganglion, V1 tracks superiorly toward the superior orbital fissure, V2 runs anteriorly to the foramen rotundum, and V3 descends toward the foramen ovale, each pathway aligned with the corresponding skull base foramina. Adjacent cranial nerves in the posterior cranial fossa are also suggested as yellow nerve trunks against realistic bone. For teaching and operative planning, this cross-sectional cranial cavity view clarifies how the trigeminal sensory root and ganglion relate to the middle cranial fossa floor and the foraminal exits that define each division’s territory. Neurosurgeons and pain specialists will recognize the key target for percutaneous rhizotomy, balloon compression, or radiofrequency ablation at the level of the Gasserian ganglion, typically accessed via the foramen ovale and guided by the petroclival landmarks. It also supports interpretation of trigeminal neuralgia caused by neurovascular compression near the root entry zone and by lesions in Meckel’s cave, including schwannoma or meningioma. Small distances matter here. Appropriate for gross anatomy, neuroanatomy, and head and neck modules, this artwork also fits atlases and journal figures discussing skull base approaches, cavernous sinus anatomy, and trigeminal neuropathic pain pathways. Use it in clinical education to explain why a V2 lesion localizes to the foramen rotundum corridor while V3 symptoms often implicate the foramen ovale route. Anatomical accuracy verified by SciePro's Medical Advisory Board.