A Postsynaptic Neuron Has Three Presynaptic Inputs - from Neurons

question 80

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.What can you tell about presynaptic neurons Y and Z?

• A)They are probably both excitatory
• B)They are probably both inhibitory
• C)Y is probably excitatory and Z is probably inhibitory
• D)Z is probably excitatory and Y is probably inhibitory

---

Definitions:

Cultural Differences

The variations in practices, norms, and values among people from different societies or social groups.

Internally Oriented

Focused on one's own thoughts, feelings, and inner experiences rather than external events.

Peaking

Reaching a highest point of development or performance; often used in the context of athletic, artistic, or personal achievement.

Older Age

A period in an individual's life characterized by advanced years, often associated with retirement and increased focus on health and life fulfillment.