Problem:
Question 1: What is a membrane potential? The Sodium equilibrium potential (ENa) is typically around what value? Does the sodium equilibrium potential change doing an action potential? Why? Does the membrane potential change during an action potential? Why?
Question 2: Describe in which direction sodium and potassium ions move in and out of the axon during the rising and falling phases of an action potential.
Question 3: What activates the delayed rectifier potassium channel? What would happen to the shape of an action potential if the delayed rectifier potassium channel opened immediately following activation?
Question 4: How does mylination influence conduction velocity?
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