Neural Control And Coordination Question 36
Question: The resting membrane potential for neuron A is -70m V, while the resting potential for neuron B is -50m V. The threshold voltage for the production of an action potential is -35mV for both neurons. Which of the following statements is incorrect?
Options:
A) Neuron A must depolarise by 35mV to reach the threshold voltage.
B) Neuron B must hyperpolarise by 15mV to reach the threshold voltage.
C) The inside of bothneurons is negatively charged with respect to the outside.
D) A single EPSP received by neuron A would cause it to depolarise slightly.
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Hyperpolarising neuron B by 15 mV would make its membrane potential -65mV, actually taking it farther away from the threshold voltage needed to fire an action potential.
BETA
