Which of the following is true regarding action potentials quizlet

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Which of the following are true regarding the action potential?

The correct answer is c. An action potential, once started, cannot be stopped or negated.

Which of the following describes action potentials?

An action potential is defined as a sudden, fast, transitory, and propagating change of the resting membrane potential. Only neurons and muscle cells are capable of generating an action potential; that property is called the excitability.

What is known about action potentials quizlet?

An action potential occurs when a neuron sends information down an axon, away from the cell body. The action potential is an explosion of electrical activity that is created by a depolarizing current. This means that some event (a stimulus) causes the resting potential to move toward 0 mV.

What is the charge of an action potential?

Once the action potential is triggered, the depolarization (2) of the neuron activates sodium channels, allowing sodium ions to pass through the cell membrane into the cell, resulting in a net positive charge in the neuron relative to the extracellular fluid.