Lab 3: Ionic Basis of Membrane and Action Potentials

Question 1

Explain how an increase in extracellular K+ concentration can have a dramatic effect on the EK, the resting membrane potential, and the neural status of a person.

Question 2

Define threshold, relative refractory period, and absolute refractory period. Explain the state of ion channels and the stimulus amplitude required to generate an action potential during each.