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MMLU / A scientist, using electrodes, is stimulating a group of neurons in the…

Problem

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question

A scientist, using electrodes, is stimulating a group of neurons in the hypothalamus and recording their membrane potential changes. She observes a sharp rise in membrane potential when she first stimulates them, the the difference of 100mV. When she tries another stimulation immediately after the first, there is no response. However, when she increase the amount of voltage she supplies to the second shock, she observes a similar response to the first. What time period of stimulation would the second shock be characterized in regards to membrane potential?

choices

  1. Depolarization
  2. Repolarization
  3. Hyperpolarization
  4. Resting potential

subject

college_medicine

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