The ________ are formed by four hollow and interconnected spaces within the brain.
A) choroid plexi
B) subarachnoid spaces
C) ventricles
D) meninges
E) aqueducts
Question 2
The brain is cushioned by ________, which is contained within the ________.
A) intracellular fluid; pia mater
B) cerebrospinal fluid; subararachnoid space
C) blood; cerebral arteries
D) interstitial fluid; subararachnoid space
E) extracellular fluid; central core of the spinal cord
