PATHOLOGICAL EFFECTS Subarachnoid Space a large amount of thick gelatinous exudates concentrate to the pavimentum cerebri, optic chiasma, bridge of varolius bulbus rhachidicus and sylvian fissure Basal meningitis accounts for the frequent dysfunction of cranial nerves III VI and vil6 PATHOLOGICAL EFFECTS Subarachnoid Space ◆A large amount of thick gelatinous exudates concentrate to the pavimentum cerebri, optic chiasma, bridge of varolius, bulbus rhachidicus and Sylvian fissure. ◆ Basal meningitis accounts for the frequent dysfunction of cranial nerves III, VI, and VII