Which of the Following Are True of Neurons Within the Ventrolateral

question 103

Multiple Choice

Which of the following are true of neurons within the ventrolateral preoptic area (vlPOA) ?

• A) Damage to vlPOA neurons produces sleepiness.
• B) Excitotoxic lesions of the vlPOA increase sleep in cats.
• C) vlPOA neurons have a low firing rate during sleep.
• D) Electrical stimulation of vlPOA neurons produces signs of drowsiness.
• E) vlPOA neurons secrete glutamate to excite regions that control arousal.

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Definitions:

Contribution Margin

The difference between sales revenue and variable costs; used to cover fixed costs and generate profit.

Break-Even Point

The sales level at which the company does not make a profit or incur a loss, denoting a balance between revenue and costs.

Variable Manufacturing Costs

These costs vary directly with the level of production output and include expenses such as raw materials, direct labor, and certain overheads.

Fixed Manufacturing

Costs that do not vary with the level of production or sales, associated with the operation of a production facility.