• Anatomical mapping of CNS structure and cellular composition through early histology and nerve anatomy, linking neurone organization, ependymal lining, and cranial nerve pathways to neurological function [4], [9], [17], [18], [19].

• CSF-centric neuroscience emerges as a core paradigm, tracing cerebrospinal fluid origin, circulation, and composition, and its relation to brain homeostasis across several studies [1], [3], [11], [12].

• Pathology-driven neuro-oncology threads converge on recognizing CNS tumors and neural cell lineages, from neurofibroma and neuroblastoma to medulloblastoma, informing early tumor taxonomy [4], [6], [13], with broader nervous-system disease context [20].

• Cross-species neurophysiology embraces animal models to probe sympathetic circuits, brain development, and metabolic effects, linking trunk nerves, ganglia, and CNS energy states to nervous system function [7], [10], [15], [16], [17].

• Clinical neurology combines psychiatric syndromes with CNS disease taxonomy, seen in dementia praecox and manic-depressive illness, and case reports of neurodegenerative musculoskeletal neuropathies, shaping early clinical categorization [2], [5], [8], [14].