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lines ventricles and central canal of spinal cord where CSF circulates
have cilia to help CSF circulate
could possibly have neuron producing stem cells
largest/ most numerous neuroglia
gives a structural framework for neurons w/in the CNS
star shaped structure
create Blood Brain Barrier (BBB)
wrap around capillaries to allow certain substances to enter brain ISF
regulates the ISF concentration of ions
wrap CNS axons in a myelin sheath,
one can wrap several axons
myelin sheath is high in lipid content
Least numerous/ smallest neuroglia
phagocytes that wonder throughout nervous system and engulf debris
myelinate axons in the PNS
do not branch as oligodendrocytes do
may enclose groups of axons
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