Potentials Question 15 Unanswered Hypokalemia (low extracellular K+ concentration), if
sustained, will cause A depolarization B hyperpolarization C maintenance of resting membrane
potential D difficulty achieving action potentials E both B and D are true Potentials Question 14
Unanswered Absolute and relative refractory periods are important aspects of which of the
following? A Action potentials B Resting potentials C Hyperpolarizing graded potentials D
Graded potentials