What effect did decreasing the extracellular sodium have on the resting membrane potential?

A) Only a small change occurred, because the resting neuron is not very permeable to sodium.
B) Only a small change occurred, because the sodium channels were mostly open.
C) The resting membrane potential disappeared.
D) The resting membrane potential became less negative.


Ans: A) Only a small change occurred, because the resting neuron is not very permeable to sodium.

Anatomy & Physiology

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