During presynaptic inhibition, the release of a neurotransmitter from the modulating neuron causes which of the following?
A) an IPSP on the postsynaptic cell
B) an EPSP on the postsynaptic cell
C) an increase in neurotransmitter release from the neuron it is modulating
D) a decrease in calcium entry into the axon terminal of the neuron it is modulating
E) a hyperpolarization of the neuron it is modulating

Question

Quizplus · Accepted Answer

During presynaptic inhibition, the release of a neurotransmitter from the modulating neuron typically leads to a decrease in calcium entry into the axon terminal of the neuron it is modulating. This reduction in calcium entry results in a decrease in the amount of neurotransmitter released from the presynaptic neuron onto the postsynaptic neuron.

During Presynaptic Inhibition, the Release of a Neurotransmitter from the Modulating