Pressure of CSF | AIPGDEE Preparations with Explanations

Pressure of CSF is:-

A. 50 to 180 mm H2O            
B. 50 to 180 mm Hg
C. 180 to 280 mm H2O          
D. 180 to 280 mm Hg

Ans. A

         The normal pressure in the cerebrospinal fluid system when one is lying in a horizontal position averages 130 millimeters of water (10 mm Hg). CSF fills the ventricles and subarachnoid space. In humans, the volume of CSF is about 150 mL and the rate of CSF production is about 550 mL/d. CSF is formed in the choroid plexuses and is absorbed through the arachnoid villi into veins