Textbook Question
Common findings in heart failure are fluid retention by the kidneys and stimulation of the heart by the sympathetic nervous system. How would both of these findings help the body to compensate for the failing heart?
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14. The Autonomic Nervous System
Sympathetic Nervous System
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Which of the following is NOT a function of the sympathetic nervous system?
A
Relaxes airways
B
Increases heart rate
C
Dilates pupils
D
Stimulates digestion
Verified step by step guidance1
Understand the role of the sympathetic nervous system, which is part of the autonomic nervous system responsible for the 'fight or flight' response.
Recognize that the sympathetic nervous system typically prepares the body for stressful or emergency situations by increasing alertness and metabolic activity.
Identify common functions of the sympathetic nervous system, such as increasing heart rate, dilating pupils, and relaxing airways to improve oxygen intake.
Consider the process of digestion, which is generally associated with the 'rest and digest' functions of the parasympathetic nervous system, the counterpart to the sympathetic nervous system.
Conclude that stimulating digestion is not a function of the sympathetic nervous system, as it is more aligned with the parasympathetic nervous system's role in conserving energy and promoting digestion.
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