41. A number of pathological conditions can cause an obstruction of the normal cerebrospinal fluid spaces. 42. These may block the circulation of cerebrospinal fluid around the brain, leading to hydrocephalus. 43. The presence of EBV DNA in cerebrospinal fluid is highly suggestive of primary cerebral lymphoma. 44. The human brain exhibits neutral buoyancy as a result of its suspension in cerebrospinal fluid. 45. The CNS is protected by the cranium, vertebral column, meninges, cerebrospinal fluid. 46. It leads to increased cerebrospinal fluid production, thus causing increased intracranial pressure and hydrocephalus. 47. Complications of this procedure are : bleeding, meningitis, cerebrospinal fluid leakage and blindness. 48. Cerebrospinal fluid ( CSF ) analysis may demonstrate elevated protein level with or without pleocytosis.49. When studying the central nervous system, cerebrospinal fluid may be sampled instead of blood. 50. In 1915 he studied an epidemic of cerebrospinal meningitis among troops camped on Salisbury Plain.
