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==Cerebrospinal Fluid Function==

==Cerebrospinal Fluid Function==

Cerebrospinal fluid (CSF) surrounds the brain as well as the central canal of the spinal cord. It helps cushion the central nervous system (CNS), acting in a similar manner to a shock absorber. It also acts as a chemical buffer providing immunological protection and a transport system for waste products and nutrients. The CSF also provides buoyancy to the soft neural tissues which effectively allows the neural tissue to "float" in the CSF. This prevents the brain tissue from becoming deformed under its own weight.

Cerebrospinal fluid (CSF) surrounds the brain as well as the central canal of the spinal cord. It helps cushion the central nervous system (CNS), acting in a similar manner to a shock absorber. It also acts as a chemical buffer providing immunological protection and a transport system for waste products and nutrients. The CSF also provides buoyancy to the soft neural tissues which effectively allows the neural tissue to "float" in the CSF. This prevents the brain tissue from becoming deformed under its own weight.

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==CSF Production and Constituents==

==CSF Production and Constituents==

CSF is a clear fluid produced by dialysis of blood in the ''choroid plexus''. Choroid plexuses are found in each lateral ventricle and a pair are found in the third and fourth ventricle. Further production also comes from the ependymal cell linings and vessels within the pia mater.  

CSF is a clear fluid produced by dialysis of blood in the ''choroid plexus''. Choroid plexuses are found in each lateral ventricle and a pair are found in the third and fourth ventricle. Further production also comes from the ependymal cell linings and vessels within the pia mater.