Glial cells are now known to release neurotransmitters such as ___as part of a modulating effect upon ___ activity.
A)glutamate,presynaptic
B)glutamate,postsynaptic
C)GABA,presynaptic
D)GABA,postsynaptic

Question

Quizplus · Accepted Answer

Glial cells are now recognized to have an active role in modulating synaptic activity by releasing neurotransmitters, of which glutamate is the most abundant. Glial glutamate release can act as a negative feedback mechanism to regulate the release of presynaptic vesicles containing traditional neurotransmitters such as dopamine, acetylcholine, or norepinephrine.

Glial Cells Are Now Known to Release Neurotransmitters Such as ___As