Question

Presynaptic facilitation makes a pathway

A. less likely to be in use, just through hyperpolarization of selected neurons.

B. more likely to be in use, just through depolarization of selected neurons.

C. capable of alteration, just through training and conditioning.

D. less likely to be in use, just through hyperpolarization of selected neurons and capable of alteration, just through training and conditioning.

E. more likely to be in use, just through depolarization of selected neurons and capable of alteration, just through training and conditioning.

Answer 1

Presynaptic facilitation enhances the likelihood of an action potential in the postsynaptic neuron by depolarizing selected neurons. This can be achieved through the release of neurotransmitter molecules that cause EPSPs in the postsynaptic neuron.

Step-by-step explanation:

Presynaptic facilitation refers to the process by which a presynaptic neuron enhances the likelihood of an action potential in the postsynaptic neuron. In this process, the presynaptic neuron depolarizes selected neurons, making the pathway more likely to be in use.

This depolarization can be achieved through the release of neurotransmitter molecules that cause excitatory postsynaptic potentials (EPSPs) in the postsynaptic neuron.