10 Questions
Which of the following best describes depolarization of a nerve impulse?
The change in the electrical potential across a neuron's cell membrane
What is the resting membrane potential of a neuron?
The inside of the neuron being negatively charged relative to the outside
What happens when a neuron is stimulated?
Ion channels in the cell membrane open in response to the stimulus
What are action potentials?
Electrical impulses involved in neuron communication
How is the resting membrane potential of a neuron maintained?
By the activity of ion channels and ion pumps
Which ions are involved in depolarization of a nerve impulse?
Sodium (Na+) and potassium (K+)
What is the typical resting membrane potential of a neuron?
-70 millivolts
What is the role of ion channels during depolarization?
Ion channels allow specific ions to enter the neuron
What triggers depolarization of a nerve impulse?
The opening of ion channels in the cell membrane
What is the purpose of depolarization in the sequence of events during an action potential?
To initiate the release of neurotransmitters
Test your knowledge on depolarization of nerve impulses with this quiz! Learn about the change in electrical potential across a neuron's cell membrane and the role it plays in communication between neurons and other cells.
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