Biology Forums - Study Force

Biology-Related Homework Help General Biology Topic started by: helpmepassalbo on Mar 5, 2015



Title: Which of the following is NOT correct regarding CSF?
Post by: helpmepassalbo on Mar 5, 2015
A) CSF is produced by the choroid plexus.
B) CSF is reabsorbed into the blood supply.
C) CSF functions to cushion the brain against abrupt movements of the brain within the skull.
D) The total volume of brain CSF is about 400 ml.
E) Loss of CSF would result in compression of brain material onto the ventral skull surface.


Title: Re: Which of the following is NOT correct regarding CSF?
Post by: Fantom on Mar 5, 2015
The total volume of CSF is usually around 150 mL at one time since it is contantly being renewed. Yes, is is reabsorbed into the blood, it does act as a shock absorber for the CNS and it is created in the choroid plexus.

So, to answer your question.. there is not 400 mL of CSF at one time..