Compared to Neurons, Glial Cells That Have Become Depolarized Take

question 11

Multiple Choice

Compared to neurons, glial cells that have become depolarized take a relatively long time to return to resting potential. What is one possible reason for this?

• A) Glial cells are smaller than neurons and have fewer ion channels.
• B) Glial cells have lower resting potentials than neurons.
• C) Neurons are myelinated, which contributes to the speed of their return to resting potential.
• D) Potassium spreads through networks of glial cells, which slows the return to resting potential.
• E) Calcium waves through glial networks prevent potassium from reentering the glial cells.

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