Multiple Choice
Which of the following statements about the parasympathetic division of the autonomic nervous system (ANS) is incorrect?
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14. The Autonomic Nervous System
Parasympathetic Nervous System
Multiple Choice
Which of the following is under the control of the parasympathetic nervous system?
A
Pupil dilation
B
Increased respiratory rate
C
Decreased heart rate
D
Increased blood pressure
Verified step by step guidance1
Understand the role of the parasympathetic nervous system: It is part of the autonomic nervous system responsible for 'rest and digest' functions, which generally conserve energy and promote maintenance activities.
Identify the functions typically associated with the parasympathetic nervous system: These include slowing the heart rate, increasing intestinal and gland activity, and relaxing sphincter muscles in the gastrointestinal tract.
Analyze each option: Pupil dilation and increased respiratory rate are typically associated with the sympathetic nervous system, which prepares the body for 'fight or flight' responses.
Consider the option of decreased heart rate: This is a classic function of the parasympathetic nervous system, as it works to conserve energy by reducing the heart rate.
Evaluate the option of increased blood pressure: This is generally a function of the sympathetic nervous system, which increases blood pressure to prepare the body for action.
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