Nervous System of the Head

Description

Partially transparent integument and cranial bones reveal the cerebral hemispheres with cortical gyri and sulci, with the brain positioned superior to the nasal and oral cavities and filling the cranial vault. Superficial and deep branches of the trigeminal nerve (V) radiate across the forehead, midface, and mandible, while the facial nerve (VII) courses anterolaterally to supply the muscles of facial expression around the orbit, nose, and mouth. Posteriorly and inferiorly, upper cervical nerves blend with the greater and lesser occipital nerves in the scalp, framing the lateral face in the same field as key cranial nerve exit regions at the orbit and skull base. Skin contours, hair, and facial landmarks remain readable beneath the neuroanatomy. Cranial nerve topography in a face-on presentation matters when you need to correlate symptoms to a lesion level, from trigeminal neuralgia along V2 or V3 distributions to facial palsy patterns involving VII. This perspective also helps separate sensory territories of V from motor mimetic deficits of VII, and it supports teaching of referred pain and headache patterns where occipital neuralgia or cervicogenic headache can mimic intracranial pathology. A clean map of peripheral courses against facial landmarks makes percutaneous procedures and regional anesthesia planning easier, including supraorbital, infraorbital, and mental nerve blocks. Use this artwork in neuroanatomy and head and neck anatomy courses to anchor cranial nerve pathways to surface anatomy, or in neurology and emergency medicine materials explaining focal neurologic deficits after trauma, stroke, or Bell palsy. It also suits patient-facing education for headache clinics and dental or maxillofacial practices discussing trigeminal distributions and sensory testing. Anatomical accuracy verified by SciePro's Medical Advisory Board.