Anatomy Exam 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| During which phase of an action potential are voltage-gated K+ channels open, while voltage-gated Na+ channels are closed? | show 🗑
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| All gated Na+ and K+ channels are closed | show 🗑
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| Na+ channels open, allowing Na+ entry | show 🗑
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| show | Repolarization (Third stage)
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| Some K+ channels remain open, and Na+ channels reset | show 🗑
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| Which statement best describes the role of leakage (nongated) channels? | show 🗑
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| Which of the following best describes the all-or-none phenomenon? | show 🗑
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| show | subthreshold stimulus
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| All voltage-gated Na+ and K+ channels are closed during which of the following stages? | show 🗑
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| show | the neuron is in the refractory period
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| Saltatory conduction refers to _______. | show 🗑
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| show | an autoimmune disease that leads to destruction of the myelin sheaths in the CNS
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| Which of the following describes a change of membrane potential from -70mV to -75mV? | show 🗑
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| show | The hyperpolarization phase of an action potential
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| show | Stronger stimuli generate action potentials more frequently than weaker stimuli.
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| show | Voltage-gated channels
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Created by:
addisonh2004