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The following graph shows that if a neuron is depolarized briefly and then hyperpolarized slightly, Na+ current can reactivate a "resurgent current. Which of following could explain prolonged and rapid action potential firing despite hyperpolarization? A 30 0- mV -30- -60 -90 -70 mV -60 mV -50 mV 40 mV 100 pA 20 ms -30 mV -20 mV

The following graph shows that if a neuron is depolarized briefly and then hyperpolarized slightly, Na+ current can reactivate a "resurgent current. Which of following could explain prolonged and rapid action potential firing despite hyperpolarization? A 30 0- mV -30- -60 -90 -70 mV -60 mV -50 mV 40 mV 100 pA 20 ms -30 mV -20 mV

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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The following graph shows that if a neuron is depolarized briefly and then hyperpolarized slightly, Na+ current can reactivate a "resurgent current. Which of the following could explain prolonged and rapid action potential firing despite hyperpolarization? A 30 mV -30- -60- -90 -70 mV -60 mV -50 mV -40 mV 100 pA 20 ms 30 mV -20 mV 7:00
Transcribed Image Text:The following graph shows that if a neuron is depolarized briefly and then hyperpolarized slightly, Na+ current can reactivate a "resurgent current. Which of the following could explain prolonged and rapid action potential firing despite hyperpolarization? A 30 mV -30- -60- -90 -70 mV -60 mV -50 mV -40 mV 100 pA 20 ms 30 mV -20 mV 7:00
-40 mV 100 pA 20 ms -30 mV -20 mV -30 mV T=21 ms Closure of inactivation gate Closure of activation gate Removal of NaVB4 from the pore upon hyperpolarization Removal of NaVB4 from the pore upon depolarization
Transcribed Image Text:-40 mV 100 pA 20 ms -30 mV -20 mV -30 mV T=21 ms Closure of inactivation gate Closure of activation gate Removal of NaVB4 from the pore upon hyperpolarization Removal of NaVB4 from the pore upon depolarization
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