MATCHING
Match each description with the term that correctly identifies the generation and conduction of the nerve impulse stage. Terms may be used more than once.
-The outside of the cell contains excess sodium ions at a ratio of 14:1; the inside of the cell contains excess potassium ions.
A)Polarization
B)Slow depolarization
C)Rapid depolarization
D)Repolarization
E)Relative refractory period
F)Absolute refractory period

Question

Quizplus · Accepted Answer

This description matches the polarization stage, where there is a difference in ion concentration between the outside and inside of the cell.

Answer: C
 This description matches the rapid depolarization stage, where the membrane potential rapidly becomes positive due to an influx of sodium ions.

Answer: D
 This description matches the repolarization stage, where the membrane potential returns to its negative resting state after the rapid depolarization caused by the influx of sodium ions.

Answer: E
 This description matches the relative refractory period, which occurs after the absolute refractory period and allows for a stronger than usual stimulus to cause depolarization.

Answer: F
 This description matches the absolute refractory period, where the neuron is unable to generate another action potential due to the inactivation of voltage-gated sodium channels.

MATCHING Match Each Description with the Term That Correctly Identifies the the Generation