Question 1

A neuron is damaged in a way that doesn't allow its potassium ion gates to open. Which of the following would be directly affected?

Accepted Answer

Repolarization

Answer

Reaching the threshold

Answer

Receiving a stimulus

Answer

Depolarization

Question 2

A neuron is damaged in a way that doesn't allow its sodium ion gates to open. Which of the following would be directly affected?

Accepted Answer

Depolarization

Answer

Repolarization

Answer

Receiving a stimulus

Answer

Reaching the resting potential

Question 3

What part of the neuron is indicated by #1?

Accepted Answer

Dendrite

Answer

Cell Body

Answer

Node of Ranvier

Answer

Axon

Question 4

What part of the neuron is indicated by #4?

Accepted Answer

Axon

Answer

Dendrite

Answer

Cell Body

Answer

Axon Terminus

Question 5

Without a refractory period, neurons would not be able to fire again.

Accepted Answer

True

Answer

False

Question 6

Threshold potential is when:

Accepted Answer

The dendrite of the neuron has been stimulated enough to trigger an action potential

Answer

The axon terminus has released the neurotransmitter across the synapse.

Answer

The cell body has repolarized enough to trigger an action potential

Answer

Only necessary for antidepressant medications. It is not needed for an action potential to occur.

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