题目内容
（请给出正确答案）
[单选题]
If the absolute refractory period of a cell is 2 ms, how many action potentials it could fire in one senond？
A.10
B.100
C.200
D.500
提问人：网友zsw900905
发布时间：2022-01-07
题目内容
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更多“If the absolute refractory per…”相关的问题
第1题
6. Bulk commodities refer to the commodities directly delivered and even sold without packages.
第2题
In which period does the excitable cell have the highest excitability?
A、absolute refractory period.
B、relative refractory period
C、supranormal period.
D、subnormao period
第3题
The common property of the action potential and local potential is
A、the amplitued of the potential is proportional to the strength of stimulation.
B、the amplitued of the potential is reversely proportional to the strength of stimulation
C、summation of two or more response.
D、refractory period.
E、activation of the voltage dependent sodium channel.
第4题
Which description is right about the end plate potential?
A、Some of them are depolarized, some of them are hyperpolarized.
B、The amplitude of the end plate potential is proportional to the amount of Ach released.
C、is attributed to the Ca2+ influx at the end plate.
D、propagate on the end plate without the decrement of the amplitude.
E、followed by refractory period.
第5题
Which process belongs to the temporal summation?
A、The response to the successive subthreshold stimulation at one site of the membrane.
B、The response to the successive suprathreshold stimulation at one site of the membrane.
C、The response to the several subthreshold stimulus simutenous applied to different site on the cell membrane.
D、The response to the several suprathreshold stimulus simutenous applied to different site on the cell membrane.
E、Responst to a suprathreshold stimulation.
第6题
Which description is not right abouth the saltatory conduction of AP on myelinated nerve fiber?
A、faster than that on the unmyelinated fiber.
B、does not conserve energy compared to that on unmyelinated fiber.
C、bidirectional conduction.
D、propagation with the same amplitude.
第7题
Which one has the property of local excitation.
A、action popential propagated on the myelinated nerve fiber.
B、action potential propagated on the unmyelinated nerve fiber.
C、spike potential
D、end plate potential.
第8题
The stimulation that could induce action potential should be
A、threshold stimulation
B、suprathreshold stimulation
C、subthreshold stimulation
D、none of all.
第9题
Whether or not a stimulation could induce AP on the exciatble membrane is determined by
A、strength
B、duration
C、rate of the change of the stimulation.
D、the property of the stimulation.
