You Are Experimenting on 3 Neurons in a Brain Slice

question 48

Multiple Choice

You are experimenting on 3 neurons in a brain slice that obey Hebbian principles of synaptic plasticity. Neurons 1 and 2 form separate synapses onto Neuron 3. Which neuron(s) must fire to increase synaptic strength at the Neuron 1-Neuron 3 synapse?

• A) 1 and 2
• B) 1 and 3
• C) 1 only
• D) 3 only
• E) all of the above

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Definitions:

Peripheral

Relating to or situated on the edge or periphery of something, often considered less important than the core.

Parasympathetic

Referring to the part of the autonomic nervous system that conserves energy as it slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles.

Somatic

Relating to, or affecting the body, especially as distinguished from the mind or consciousness.

Endorphins

Natural, pain-relieving chemicals produced by the body that also contribute to feelings of pleasure and well-being.