A Postsynaptic Neuron Has Three Presynaptic Inputs - from Neurons

question 33

Multiple Choice

A postsynaptic neuron has three presynaptic inputs - from neurons X, Y, and Z. When X and Y are stimulated simultaneously and repeatedly, the postsynaptic neuron reaches threshold and undergoes an action potential. When X and Z are stimulated simultaneously, however, there is no change in the membrane potential of the postsynaptic neuron. The simultaneous stimulation of X and Y is an example of

• A) temporal summation.
• B) presynaptic inhibition.
• C) spatial summation.
• D) neuronal divergence.
• E) presynaptic facilitation.

---

Definitions:

Withdraw The Offer

The act of revoking or cancelling a proposal or bid that had previously been made.

Present Obligation

A current duty or responsibility that an entity has as a result of past events, which will likely require an outflow of resources.

Restructuring

The process of organizing a company or its operations differently to increase efficiency or improve profitability, often involving changes in business model, operations, or staff.

Historical Pattern

Trends or sequences in data that have been observed to repeat over historical periods, often used for forecasting and analysis.