Neuroanatomy and Cranioneural Topography — WACS Viva & Clinical Scenarios (Basic Neurosciences and Neurosurgical Critical Care)

Exam-style neuroanatomy and cranioneural topography viva scenarios with examiner probes and model answers for Neurosurgery candidates.

Scenarios covered

• SCENARIO 1: Describe the osteological boundaries, dural walls, contents, and anatomical relationships of the cavernous sinus, detailing the exact spatial orientation of cranial nerves traversing its lateral wall versus those within the sinus lumen alongside the internal carotid artery.
• SCENARIO 2: Detail the arterial architecture of the circle of Willis, including its normal morphologic configuration, common anatomic variations, and the specific origin, course, perforating branches, and clinical territories of the medial and lateral lenticulostriate arteries and the recurrent artery of Heubner.
• SCENARIO 3: Outline the microsurgical topographic anatomy of the cerebellopontine angle, detailing its structural boundaries, cranial nerves VII through XI, cerebellar arteries (PICA, AICA, SCA), venous drainage, and the osteology and contents of the internal acoustic meatus.
• SCENARIO 4: Describe the boundaries, recesses, floor topography, and choroid plexus attachments of the third and fourth ventricles, mapping the pathway of cerebrospinal fluid circulation from the lateral ventricles to the arachnoid granulations and dural venous sinuses.
• SCENARIO 5: Detail the cross-sectional internal neuroanatomy of the cervical spinal cord, including the spatial somatotopic organisation of the corticospinal, spinothalamic, and dorsal column pathways, its vascular supply, and the anatomic substrate underlying central cord, anterior cord, and Brown-Sequard syndromes.