Typically,it takes about a 100 mV depolarization change to produce an action potential.Which of the following should result in an action potential?
A) inhibitory signals equaling approximately 110 mV
B) excitatory signals equaling 75 mV plus inhibitory signals equaling 25 mV
C) excitatory signals equaling 110 mV
D) inhibitory signals equaling 75 mV plus excitatory signals equaling 25 mV

Question

Quizplus · Accepted Answer

Excitatory signals equaling 110 mV would result in an action potential, as it meets the threshold of a 100 mV depolarization change needed to initiate an action potential. A is incorrect because inhibitory signals do not contribute to depolarization and would not lead to an action potential. B and D are also incorrect because they do not reach the threshold of 100 mV depolarization change.

Typically,it Takes About a 100 MV Depolarization Change to Produce