Fluid compartment of CNS


Fluid compartment of CNS


Main fluid components – Cerebrospinal Fluid & Cerebral blood flow

Functionality:

• Lubrication by CSF

• Nutrition by cerebral blood flow

Cerebrospinal Fluid:

→ Normal Volume = 150 mL; Normal CSF pressure = 70 -180 mm H2O.

→ Rate of CSF production = 550 mL/day; Recycling rate = 3.7 times/day

→ Site of production = CHOROID PLEXUS; Absorption site = ARACHNOID VILLI

→ Regulation occurs at level of absorption.

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