If Neuron X Causes Hyperpolarization of Neuron Z but Neuron

question 59

Multiple Choice

If neuron X causes hyperpolarization of neuron Z but neuron Y causes depolarization of neuron Z, what change would you expect in neuron Z if it is stimulated by both X and Y simultaneously?

• A)a significant increase in membrane potential
• B)a significant decrease in membrane potential
• C)temporal summation leading to an impulse on Z
• D)simultaneous influx and efflux of cations or simultaneous influx of cations and efflux of anions
• E)an increase in the resting membrane potential

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Definitions:

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A genetic disorder characterized by the body's inability to break down the amino acid phenylalanine, leading to harmful accumulations.

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An essential amino acid that is a building block of proteins, not synthesized by the human body, and thus must be obtained from the diet.

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