Given That Impulses from Parasympathetic Nerves Decrease Heart Rate, and That

question 16

Multiple Choice

Given that impulses from parasympathetic nerves decrease heart rate, and that the neurotransmitter for parasympathetic postganglionic fibers is acetylcholine (ACh) , predict how the following chemicals might affect heart rate.

• A) Pilocarpine, a drug that simulates the action of ACh, will decrease heart rate.
• B) Pilocarpine, a drug that simulates the action of ACh, will increase heart rate.
• C) Pilocarpine, a drug that simulates the action of ACh, will increase heart rate; and atropine, a drug that blocks the action of ACh, will decrease heart rate.
• D) Atropine, a drug that blocks the action of ACh, will decrease heart rate.

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Definitions:

Economic Term

A concept or terminology used within the field of economics to describe processes, theories, or phenomena related to how goods and services are produced, distributed, and consumed.

Opportunity Cost

Giving up potential improvements from various alternatives by choosing one option.

Scarcity

Scarcity refers to the fundamental economic problem of having seemingly unlimited human wants in a world of limited resources, leading to the necessity of allocation decisions.

Production

The process of combining various inputs to make goods or services for consumption.