Asked by Chantal Shanty on Jun 11, 2024
Verified
Identify the phases of an action potential. (Check all that apply.)
A) Afterpotential
B) Depolarization
C) Hyperpolarization
D) Repolarization
Action Potential
A rapid rise and subsequent fall in voltage or electrical charge across a cellular membrane, the basis for neural communication and muscle contraction.
Afterpotential
Afterpotential is the transient electrical polarization that follows the action potential in nerve cells or muscle fibers, impacting the cell's excitability.
Depolarization
A decrease in the difference in electrical charge across a cell's plasma membrane, making the inside of the cell less negative compared to the outside.
- Describe the mechanisms and phases of an action potential.
Verified Answer
CM
Carrigan MatteoliJun 18, 2024
Final Answer :
B, C, D
Explanation :
Depolarization is the phase where the neuron's membrane potential becomes more positive. Hyperpolarization is when the membrane potential becomes more negative than the resting potential. Repolarization is the process of returning to the resting potential after depolarization.
Learning Objectives
- Describe the mechanisms and phases of an action potential.