Neuron X makes inhibitory axon-axonal synaptic contact with neuron Y at the synapse of Y and neuron Z.Which will occur when action potentials are stimulated in neuron X?
A)Neuron Y will be inhibited from reaching the threshold to fire an action potential.
B)The release of neurotransmitter by neuron Y will be inhibited.
C)The synapse between neurons Y and Z will be changed from an excitatory synapse to an inhibitory one.
D)Neurons Y and Z will both be more likely to reach threshold and fire an action potential.
E)Neurons Y and Z will both be less likely to reach threshold and fire an action potential.

Question

Neuron X makes inhibitory axon-axonal synaptic contact with neuron Y at the synapse of Y and neuron Z.Which will occur when action potentials are stimulated in neuron X?
A)Neuron Y will be inhibited from reaching the threshold to fire an action potential.
B)The release of neurotransmitter by neuron Y will be inhibited.
C)The synapse between neurons Y and Z will be changed from an excitatory synapse to an inhibitory one.
D)Neurons Y and Z will both be more likely to reach threshold and fire an action potential.
E)Neurons Y and Z will both be less likely to reach threshold and fire an action potential.

Quizplus · Accepted Answer

The inhibitory axon-axonal synapse from neuron X to neuron Y will reduce the release of neurotransmitter from neuron Y, thus inhibiting its effect on neuron Z.

Neuron X Makes Inhibitory Axon-Axonal Synaptic Contact with Neuron Y