The membrane potential of most neurons at rest is
A)Equal to the equilibrium potential of potassium ion
B)Equal to the equilibrium potential of sodium ion
C)Slightly more negative than the equilibrium potential of potassium ion
D)Slightly more positive than the equilibrium potential of potassium ion
E)Both equal to the equilibrium potential of sodium ion and slightly more negative than the equilibrium potential of potassium ion

Question

Quizplus · Accepted Answer

The resting membrane potential is primarily determined by the permeability of the membrane to potassium ions, making it close to but slightly more positive than the equilibrium potential of potassium due to the small permeability to other ions like sodium.

The Membrane Potential of Most Neurons at Rest Is