[Verse 1] Before the scanner warms, before the contrast flows, You map the nervous system where the damage shows, Mental status first — is the patient tracking speech? Or drifting into coma, consciousness out of reach? Glasgow Coma Scale — eyes, verbal, motor, three domains, Motor subscore weighs the heaviest in your claims, Posturing or localising, that gap cuts deep, FOUR score adds brainstem, catches what the numbers sleep [Chorus] Localise before imaging, every single time, Pupil, drift, and reflex — read the clinical signs, Afferent defect, Horner's, third nerve with a blown pupil wide, Aneurysm 'til it's not — that's how surgeons think inside, Eyes, verbal, motor, brainstem, field, and tone, Name the level, name the side — then let the scanner show [Verse 2] Cranial nerves unwinding like a twelve-rung copper wire, Confrontation fields reveal the chiasm from the gyrus fire — Bitemporal hemianopia whispers sellar mass, Homonymous quadrants trace the optic radiation's path, Weber to the damaged ear, Rinne shows conduction's fall, House-Brackmann grades the facial nerve from perfect down to crawl, Oculocephalic doll's-eye reflex, corneal blink, Gag and cough and breathing pattern — map the brainstem's link [Chorus] Localise before imaging, every single time, Pupil, drift, and reflex — read the clinical signs, Afferent defect, Horner's, third nerve with a blown pupil wide, Aneurysm 'til it's not — that's how surgeons think inside, Eyes, verbal, motor, brainstem, field, and tone, Name the level, name the side — then let the scanner show [Verse 3] Pronator drift betrays the subtle upper motor loss, MRC grades zero through to five across each cross, Dissociated sensory — spinothalamic splits from dorsal column touch, Syrinx draws that cape-like pattern, Brown-Séquard says as much, Coordination falters with a cerebellar hand, Gait apraxia, magnetic steps — frontal lobe command, Normal pressure hydrocephalus — wet, wobbly, and slow to think, Aphasia types, neglect, apraxia — map the cognitive brink [Bridge] In the smallest patients feel the fontanelle, Head circumference percentiles — the numbers tell, Sunsetting eyes and milestones missed by months, Primitive reflexes lingering — that's the frontal's stunts, Hunt-Hess grades the bleed that hasn't bled enough, Fisher clots predict vasospasm, Spetzler-Martin maps the rough, Karnofsky, mRS, and Engel close the loop, Ten unseen cases — localise before the group [Chorus] Localise before imaging, every single time, Pupil, drift, and reflex — read the clinical signs, Afferent defect, Horner's, third nerve with a blown pupil wide, Aneurysm 'til it's not — that's how surgeons think inside, Eyes, verbal, motor, brainstem, field, and tone, Name the level, name the side — then let the scanner show
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