During the depolarisation phase of an action potential, which ions rush into the neuron?

Answer and explanation

Correct answer: C. Sodium ions

  1. Step 1: Voltage-gated sodium channels open and sodium ions enter, making the inside less negative.
Answer
Sodium ions.
Why not the others: Potassium ions leave during repolarisation.

Practise more Nervous and Endocrine Systems.

Free questions with an explanation for every one, and full timed Alberta Diploma Exams mock tests.