Supporting cells are called _______________________.
a.Astrocytes: form a living barrier between capillaries and _______________. They protect the neurons from _____________ substances that may be in the blood.
b.Microglia: phagocytes that dispose of debris, including _______________ cells and ___________________
c.Ependymal cells: line the central cavities of the ________________ and __________________. Help to circulate ___________________________ fluid.
d.Oligodendrocytes: help produce ____________________ sheaths
e.Schwann cells: part of the PNS; form ________________ sheaths
f.Satellite cells: part of the PNS; help protect neuron