Cerebrospinal fluid
a. is formed by the choroid plexuses
b. is formed by the arachnoid villi
c. separates the blood and brain to form the blood-brain barrier
d. is formed only in the ventricles of the cerebrum
e. enters the blood at the choroid plexuses
A
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Answer the following statement true (T) or false (F)
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a. true b. false