Electrical and chemical influences make it possible for nerve impulses to occur. The nurse educator asks a student nurse to describe the action potential of the nerve impulse
Based on this information, what would be the best explanation of the action potential by the student nurse?
1 . Nerve cell at rest
2 . Plasma membrane more positive on outside
3 . Sodium moves inside membrane, followed by potassium
4 . Plasma membrane more positive on inside
A) 1, 2
B) 1, 4
C) 2, 3
D) 3, 4
D
Feedback:
Nerve cell at rest = resting potential (plasma membrane more positive on outside). Nerve stimulus—Sodium moves inside membrane, followed by potassium = action potential (membrane now more positive on inside) nerve impulse.
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