A Toxin That Binds Specifically to Voltage-Gated Sodium Channels in Axons

question 26

Multiple Choice

A toxin that binds specifically to voltage-gated sodium channels in axons would be expected to

• A) prevent the hyperpolarization phase of the action potential.
• B) prevent the depolarization phase of the action potential.
• C) prevent graded potentials.
• D) increase the release of neurotransmitter molecules.
• E) have most of its effects on the dendritic region of a neuron.

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