Which One of the Following Steps Occurs During the Absolute

question 1

Multiple Choice

Which one of the following steps occurs during the absolute refractory period?

• A) The neuron cannot generate an action potential.
• B) Sodium channels open, releasing sodium ions into the neuron, which causes potassium channels to close.
• C) Sodium channels open, which causes potassium channels to open.
• D) A nerve impulse fails to reach threshold.
• E) Potassium channels open, releasing potassium ions from the neuron; sodium channels close.

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The total number of inhabitants of a particular town, area, or country.

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The amount due to an investor once a bond or other debt instrument reaches its maturity date.

CSB

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