The Cerebrospinal Fluid ________

Multiple Choice

The cerebrospinal fluid ________.

A) is secreted by the arachnoid villi
B) enters the four ventricles after filling and circulating through the subarachnoid space
C) is secreted mostly by the ependymal cells lining the brain ventricles
D) is continually formed mostly by the choroid plexuses
E) is identical in composition to whole blood