Under Which of These Circumstances Does an Action Potential Develop

question 357

Multiple Choice

Under which of these circumstances does an action potential develop

• A)when threshold voltage is reached
• B)when voltage-gated K⁺ channels open and the membrane reaches about -40 mV
• C)when spatial and/or temporal summation of graded potentials are cancelled
• D)when Cl^- enters the cell

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