A "resting" motor neuron is expected to
A) release lots of acetylcholine.
B) have high permeability to sodium ions.
C) be equally permeable to sodium and potassium ions.
D) exhibit a resting potential that is more negative than the "threshold" potential.
E) have a higher concentration of sodium ions on the inside of the cell than on the outside.

Question

Quizplus · Accepted Answer

A resting motor neuron should have a resting potential that is more negative than the "threshold" potential, which is necessary to trigger an action potential.

Answer: C
 A resting motor neuron should be equally permeable to sodium and potassium ions, which is necessary to maintain the resting potential.

Therefore, the correct answer is D and C.

A "Resting" Motor Neuron Is Expected to