Assume a physiologist has inserted a microelectrode at the arrow tip in the preceding diagram. When the neuron is at rest, the voltage recorded at the arrow tip will be __________.
A) zero millivolts (mV)
B) -70 mV
C) +50 mV
D) negative, neutral, or positive depending on what kind of neuron it is

Question

Quizplus · Accepted Answer

When the neuron is at rest, the voltage recorded at the arrow tip will be at its resting potential of -70mV. This is the typical resting potential for most neurons.

Assume a Physiologist Has Inserted a Microelectrode at the Arrow