Ependymal cells are glial cells that ___________.
a. regulate the extracellular environment
b. produce cerebrospinal fluid (CSF)
c. are responsible for the immune defense and waste removal
d. are responsible for myelination
a. regulate the extracellular environment
b. produce cerebrospinal fluid (CSF)
c. are responsible for the immune defense and waste removal
d. are responsible for myelination