Which of the Following Statements Is TRUE Regarding Action Potentials

question 162

Multiple Choice

Which of the following statements is TRUE regarding action potentials?

• A) The strength of action potentials can vary dramatically.
• B) Action potentials occur at a constant rate.
• C) The strength of action potentials does not vary.
• D) Regardless of their rate of occurrence, action potentials fire at a steady rhythm.

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Definitions:

Summation

The process of adding together excitatory postsynaptic potentials (EPSPs).

Temporal

Relating to time or denoting time as opposed to space.

Spatial Summation

A mechanism in neural communication where multiple presynaptic neurons together stimulate a postsynaptic neuron to threshold, causing it to fire an action potential.

Synaptic Terminal

The end part of an axon that makes a synaptic contact with another neuron or with a muscle or gland cell.