Tetrodotoxin is a toxin that blocks the sodium channels from opening. What effect would this have on the function of neurons?
A) Neurons would depolarize more rapidly.
B) Action potentials would lack a repolarization phase.
C) The refractory period would be shorter than normal.
D) The neurons would not be able to propagate action potentials.
E) none of the above

Question

Quizplus · Accepted Answer

Tetrodotoxin would prevent the opening of sodium channels, which are necessary for the generation of action potentials. Without the ability to propagate action potentials, neurons would not be able to function normally.

Tetrodotoxin Is a Toxin That Blocks the Sodium Channels from Opening