For the Following Questions, Assume a Hypothetical Postsynaptic Neuron Has

question 131

Multiple Choice

For the following questions, assume a hypothetical postsynaptic neuron has three presynaptic inputs: neurons X, Y, and Z. Also, assume neuron Z is excitatory. If neurotransmitter from Y causes the membrane potential of the postsynaptic cell to decrease slightly, then the

• A) synapse is excitatory
• B) postsynaptic membrane's potential will be farther away from threshold
• C) postsynaptic membrane could be excitatory or inhibitory
• D) neurotransmitter from Y causes an IPSP on the presynaptic membrane
• E) postsynaptic membrane's potential will be farther away from threshold, and the neurotransmitter from Y causes an IPSP on the presynaptic membrane

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