Which of the Following Statements About Neural Control of Digestion

question 26

Multiple Choice

Which of the following statements about neural control of digestion is not true?

• A)Parasympathetic stimulation is excitatory to digestion
• B)Sympathetic stimulation is generally inhibitory to digestion
• C)Local nerve networks (nerve plexuses) stimulate digestive functions
• D)Under normal circumstances, nerve plexuses regulate digestion without input from the autonomic nervous system
• E)None of the choices are correct

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Definitions:

Long-Run Supply Curve

A graphical representation showing how the quantity supplied of a good or service varies with price over a long period, when all inputs can be varied.

Marginal Cost

The supplementary cost associated with making an additional unit of a product or service.

Marginal Revenue

The additional income received from selling one more unit of a good or service; it is an important concept in determining optimal output levels.

Break-Even Point

The point at which total costs and total revenue are equal, resulting in no net loss or gain.