Spatial Summation Occurs in a Postsynaptic Neuron

question 111

Multiple Choice

Spatial summation occurs in a postsynaptic neuron

• A) when several EPSPs from a single presynaptic input sum to reach threshold.
• B) when EPSPs from several presynaptic inputs sum to reach threshold.
• C) upon simultaneous interaction of an EPSP and an IPSP.
• D) when several IPSPs from a single presynaptic input sum to hyperpolarize the membrane.
• E) none of these answers.

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Definitions:

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Risk

The potential for losing something of value, often used in the context of investments where there is a possibility of financial loss.

Variable Cost Ratio

The proportion of variable costs to sales revenue, indicating how much variable cost changes with a change in the company's production volume.

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