Psychology / Unit 2 Psych 0149 short lesson, about 20 seconds
Glial Cells
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The idea
Glial cells support neurons by supplying nutrients, producing myelin, and clearing waste from around the synapse.
In practice
Glial cells reabsorb excess neurotransmitter from a synapse so the next signal is not read on top of the last one.
Where people slip
Glial cells were long treated as packing material. Their role in signaling is now an active research area.
Your place on the trail
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