Podcast
Questions and Answers
What is the process called when the depolarization travels along a nerve or muscle fiber?
What is the process called when the depolarization travels along a nerve or muscle fiber?
Nerve or muscle impulse
How are sodium and potassium membrane concentration differences re-established after action potentials are completed?
How are sodium and potassium membrane concentration differences re-established after action potentials are completed?
By the action of the Na+-K+ pump
What ions diffuse to the inside during depolarization?
What ions diffuse to the inside during depolarization?
Sodium ions
Which ions diffuse to the outside during repolarization?
Which ions diffuse to the outside during repolarization?
What type of process is the re-establishment of sodium and potassium membrane concentration differences?
What type of process is the re-establishment of sodium and potassium membrane concentration differences?
What energy system of the cell provides the energy for the Na+-K+ pump operation?
What energy system of the cell provides the energy for the Na+-K+ pump operation?
Why does the 'recharging' of the nerve fiber require energy?
Why does the 'recharging' of the nerve fiber require energy?
What happens to the sodium ions that have diffused to the interior of the cell during action potentials?
What happens to the sodium ions that have diffused to the interior of the cell during action potentials?
How are potassium ions that have diffused to the exterior returned to their original state?
How are potassium ions that have diffused to the exterior returned to their original state?
What is the importance of re-establishing sodium and potassium membrane concentration differences?
What is the importance of re-establishing sodium and potassium membrane concentration differences?
