What ion is found on the outside of the neuron membrane that mostly contributes to a positive resting potential there?
A)Calcium
B)Potassium
C)Sodium
D)Chloride

Question

Quizplus · Accepted Answer

Sodium ions (Na+) are primarily found outside the neuron membrane and contribute significantly to the positive charge of the resting potential due to the concentration gradient maintained by the sodium-potassium pump.

What Ion Is Found on the Outside of the Neuron