In addition to the neurotransmitter glutamate, in order to activate the NMDA receptors, the neuron requires ____.
A) serotonin
B) dopamine
C) increased release of magnesium ions from the presynaptic neuron
D) removal of magnesium ions from sodium and calcium channels

Question

Quizplus · Accepted Answer

The activation of NMDA receptors requires the removal of magnesium ions from sodium and calcium channels in addition to the neurotransmitter glutamate. Serotonin and dopamine are not necessary for NMDA receptor activation, and increased release of magnesium ions from the presynaptic neuron would actually inhibit NMDA receptor activation.

In Addition to the Neurotransmitter Glutamate, in Order to Activate