10. Glutamate is an example of an excitatory amino acidneurotransmitter that acts via direct synaptic transmission when itis released from presynaptic neurons in the brain.
Which of the following is a mechanism by which an actionpotential is LEAST likely to occur in the associated postsynapticneuron? Summation of ionic events
temporally from rapid stimulation of the presynapticneurons that release glutamate
spatially from the glutamate-releasing neurons and otherneurons releasing an excitatory neurotransmitter that acts via anindirect mechanism
spatially from the glutamate-releasing neurons and otherneurons releasing the excitatory transmitter,aspartate
spatially from the neurons releasing glutamate and otherneurons releasing the inhibitory transmitter, GABA
spatially from many postsynaptic neurons that releaseglutamate.
