outnumbering neurons by up to 50 to 1, Glial cells protect, insulate, and reinforce neurons.
Thus, they are referred to as the nervous system's "supporting cells." Glial cells have four primary roles: to surround and stabilise neurons; to supply them with nutrition and oxygen; to insulate one neuron from another; and to degrade and remove the remains of dead neurons (clean up).
The cerebral cortex contains just 16.34 billion neurons and 60.84 billion glia, giving it a glia to neuron ratio of approximately 3.76 to 1.
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Complete question:
outnumbering neurons by up to 50 to 1, which cells protect, insulate, and reinforce neurons?
a. axon cells
b. glial cells
c. sensory cells
d. motor cells
e. satellite cells