Asked by Colby Raley on Jul 01, 2024
Verified
If the activity level of the sympathetic nervous system increases, the level of activity in the parasympathetic nervous system
A) decreases.
B) increases.
C) doubles.
D) remains constant.
Sympathetic Nervous System
Part of the autonomic nervous system that activates the body's rapid involuntary response to dangerous or stressful situations, often referred to as "fight or flight" response.
Parasympathetic Nervous System
A division of the autonomic nervous system that promotes relaxation and functions under normal, non-stressful conditions.
- Understand the functions and processes of the sympathetic and parasympathetic nervous systems.
Verified Answer
ZK
Zybrea KnightJul 07, 2024
Final Answer :
A
Explanation :
The sympathetic and parasympathetic nervous systems have opposing effects on many bodily functions, including heart rate, respiratory rate, and digestion. When the sympathetic nervous system is activated (e.g. during a "fight or flight" response), heart rate and respiratory rate increase while digestion slows down. In contrast, when the parasympathetic nervous system is activated (e.g. during rest and relaxation), heart rate and respiratory rate decrease while digestion speeds up. Therefore, if the activity level of the sympathetic nervous system increases, the level of activity in the parasympathetic nervous system would have to decrease in order to maintain balance and prevent overstimulation of bodily functions.
Learning Objectives
- Understand the functions and processes of the sympathetic and parasympathetic nervous systems.
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