<prompt> All are seen in cerebral herniation, except :Neck stiffnessLoss of consciousnessPupil dilatationAutonomic disturbances  <response>: A i.e. Neck stiffnessNeck stiffness is seen in those condition in which the meninges are irritated e.g. meningitis.Herniation ConingRefers to displacement of brain tissue away from a mass and into a compament that it normally does not occupy.UncalHerniationCentral transtentorialHerniationTransfalcialHerniationForaminalHerniationDisplacement of antero medial temporal gyrusuncus into the tentorial opening ltSequential Compression of:Symmetric downward movement of upperthalamic region through tentorial opening 1tSequential Compression of:Displacement ofcingulate gyrusunder the falxDownwardforcing of thecerebellar tonsil- Ipsilateral III cranial nv.- Upper midbrain firstand across theinto the- Contralateral brainstem later- Pons latermidlineforamen- Whole brainstem eventually- Medulla finally magnum.Physical Sign:Physical sign:EarlyLaterEventuallyEarlyLaterEventually- IL dilated- Babinski- Tetraparesis- Erratic- Cheyne- FixedpupilQsignQ- BL fixedrespirationstokesdilated- Sign of- ILdilated pupil- Small reactiverespirationpupilsupraten-hemiplegia- Erraticpupil- Decoicate- Decerebratetorial masslesion- AutonomicdisturbanceQrespiration- Death- BL extensorplanterQrigidityposturing 