A neurotoxin selectively blocks voltage-gated sodium channels in neurons. Based on the…
Biology · NEET · NTA Exams — Neural Control and Coordination
A neurotoxin selectively blocks voltage-gated sodium channels in neurons. Based on the chapter, which of the following effects would most likely occur?
I. Impaired depolarization phase.
II. Unaffected resting membrane potential.
III. Enhanced repolarization.
IV. Inability to generate an action potential.
V. Continuous efflux of K⁺ at rest.
Choose the correct answer from the options given below:
- I, II and III only
- II, III and IV only
- I, II and IV only
- I, III and V only
Answer
(C) I, II and IV only
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