Multiple Choice
Which of the following statements is true of the parasympathetic nervous system (PNS)?
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14. The Autonomic Nervous System
Parasympathetic Nervous System
Multiple Choice
The parasympathetic nervous system is primarily responsible for which of the following responses?
A
Conducting sensory information from the skin to the spinal cord
B
Decreasing heart rate and stimulating digestive activity ("rest and digest")
C
Increasing heart rate and dilating the pupils ("fight or flight")
D
Initiating voluntary contraction of skeletal muscles via motor neurons
Verified step by step guidance1
Understand the role of the parasympathetic nervous system (PNS) within the autonomic nervous system, which controls involuntary body functions.
Recall that the PNS is often described as the "rest and digest" system, meaning it promotes activities that conserve and restore energy.
Identify that the PNS decreases heart rate and stimulates digestive processes, contrasting with the sympathetic nervous system which prepares the body for "fight or flight" responses.
Recognize that conducting sensory information from the skin to the spinal cord is a function of the somatic sensory pathways, not the parasympathetic system.
Note that initiating voluntary contraction of skeletal muscles is controlled by the somatic motor system, not the parasympathetic nervous system.
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