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Test: High School Biology
1. | When an action potential reaches the axon of a neuron, what is the first event to occur? |
Calcium rushes into the cytoplasm
Extracellular potassium rushes into the cytoplasm
Intracellular sodium rushes out of the cytoplasm
Intracellular potassium rushes out of the cytoplasm
Extracellular sodium rushes into the cytoplasm
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