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Clinical Significance and Structure of Cerebrospinal fluid

John Harahap*

Cerebrospinal fluid (CSF) is an ultra-filtrate of plasma contained within the ventricles of the brain and the subarachnoid spaces of the cranium and spine. It performs vital functions, including providing nourishment, waste removal, and protection to the brain. Adult CSF volume is estimated to be 150 ml, with a distribution of 125 ml within the subarachnoid spaces and 25 ml within the ventricles. CSF is predominantly secreted by the choroid plexus with other sources playing a more poorly defined role. In the adult population, its secretion varies between individuals, usually ranging from 400 to 600 ml per day.