Glia

Question 1

make up 90% of CNS cells

Answer 1

glia

Question 2

maintain external environment for neurons: maintain extracellular ion conc by tight capillaries to stop ion leakage

Answer 2

Astrocytes

Question 3

form myelin sheaths in CNS, wrap around neuron axon

Answer 3

oligodendrocytes

Question 4

phagocytic hoovers mopping up infection, normally do nothing in healthy human

Answer 4

microglia