A decrease in the number of voltage-gated Ca²⁺ ion channels in the presynaptic terminal would

A) enhance transmission across the synapse.
B) reduce or inhibit transmission across the synapse.
C) have no effect on transmission across the synapse.
D) alter receptors on the postsynaptic membrane.
E) increase exocytosis.

Voltage-gated Ion Channels

Channels that open or close in response to changes in membrane potential, allowing ions to pass through the membrane.

Presynaptic Terminal

The end part of an axon from which the release of neurotransmitters happens to signal the next neuron across a synaptic gap.

Synapse

The junction between two neurons where electrical or chemical signals are transmitted from one neuron to another.