-In the above graph, which of the following causes the slight increase in voltage at point 2?
A) Cl? entering the neuron
B) Na+ entering the neuron
C) K+ leaving the neuron
D) Na+ leaving the neuron
E) K+ entering the neuron

Question

-In the above graph, which of the following causes the slight increase in voltage at point 2?
A) Cl? entering the neuron 
B) Na+ entering the neuron 
C) K+ leaving the neuron 
D) Na+ leaving the neuron 
E) K+ entering the neuron

Quizplus · Accepted Answer

The slight increase in voltage at point 2 in a typical neuron's action potential graph is caused by Na+ (sodium ions) entering the neuron. This influx of positively charged ions increases the internal voltage of the neuron, leading to depolarization.

-In the Above Graph, Which of the Following Causes the Slight