Joan,a Neuroscience Graduate Student,is Asked by Her Laboratory Mentor to Study

question 25

Multiple Choice

Joan,a neuroscience graduate student,is asked by her laboratory mentor to study the communication of two neurons grown in a petri dish.She is asked to stimulate an action potential in the first neuron,which will send a depolarizing stimulus to the second,"receiving" neuron.However,her mentor would also like her to block the receiving neuron from generating an action potential.How can Joan accomplish this?

• A)She must cause the depolarization current in the receiving neuron to drift to the junction where the cell body and the axon meet.
• B)She must block the process of summation in the receiving neuron.
• C)She must cause the first neuron to release excitatory neurotransmitters.
• D)She must remove the myelin from the receiving neuron.

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Definitions:

Diseconomies of Scale

The phenomenon where production costs per unit increase as a firm's output increases, usually due to inefficiencies that arise with large-scale production.

Production Volume

The quantity of products that a manufacturing system can produce over a specific period of time.

Total Cost

The complete cost of production or operation, including fixed and variable costs, associated with a business activity or process.

Economies of Scale

Cost advantages that enterprises obtain due to their scale of operation, with cost per unit of output decreasing with increasing scale.