Which of the Following Statements About Action Potentials Is False

question 26

Multiple Choice

Which of the following statements about action potentials is false?

• A)Electrical signals are propagated along a dendrite.
• B)They require rapid changes in membrane potential.
• C)Due to leaking, membranes are subject to subthreshold depolarization, which is insufficient to produce the action potential.
• D)At the end of the action potential, most neurons show a transient hyperpolarization.
• E)A refractory period is always necessary following an action potential.

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Definitions:

Efferent Nervous System

Part of the nervous system responsible for carrying signals away from the brain and spinal cord to muscles, thereby instructing them to act or move.

Autonomic Nervous System

The part of the nervous system that controls involuntary actions of the body, such as heart rate, digestion, and respiratory rate.

Biogenic Amines

Organic compounds, including neurotransmitters like dopamine and serotonin, involved in signal transmission within the nervous system.

Endorphins

Natural chemicals produced by the body that help to relieve pain and stress.