10 Questions
What factors determine the time and length constants of a nerve membrane?
The membrane resistance and capacitance
How does an action potential differ from the subthreshold responses of a membrane?
Action potential involves a rapid depolarization and repolarization of the membrane, while subthreshold responses are slower and do not reach the threshold for an action potential.
What is the sequence of conductances that underlies the action potential?
Na+ influx followed by K+ efflux
How are the responses of Na+ and K+ channels to membrane depolarization similar?
Both channels open in response to membrane depolarization
How do the gating properties of Na+ and K+ channels relate to the absolute and relative refractory periods of the action potential?
The gating properties determine the duration of the absolute and relative refractory periods
What is the nerve membrane's response to small-amplitude stimuli similar to?
A passive electric circuit comprising batteries, resistors, and capacitors
What causes the responses of Na+ and K+ channels to differ?
The presence of the Na+ channel inactivation gate
What shapes the electric responses of the nerve membrane?
Time and length constants
What underlies the action potential?
Sequence of conductances
How do the gating properties of Na+ and K+ channels relate to the absolute and relative refractory periods of the action potential?
They determine the duration of the refractory periods
Test your knowledge of the generation and conduction of action potentials with this quiz. Explore topics such as nerve membrane response to stimuli, passive electric circuits, time and length constants, and more. Prepare to answer questions related to the behavior of nerve membranes and the factors influencing their function.
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