Multiple Choice
Which of the following best describes the somatic nervous system?
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13. The Peripheral Nervous System
Introduction to the Peripheral Nervous System
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What is the primary function of the somatic nervous system?
A
It controls voluntary movements of skeletal muscles.
B
It manages the rest-and-digest activities.
C
It is responsible for the fight-or-flight response.
D
It regulates involuntary functions such as heart rate and digestion.
Verified step by step guidance1
Begin by identifying the components of the nervous system. The nervous system is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). The somatic nervous system is part of the PNS.
Understand the role of the somatic nervous system. It is primarily responsible for voluntary control of body movements via skeletal muscles.
Differentiate between voluntary and involuntary functions. Voluntary functions are those that you can consciously control, such as moving your arm or leg.
Consider the other options provided: 'rest-and-digest activities' are managed by the parasympathetic nervous system, 'fight-or-flight response' is controlled by the sympathetic nervous system, and 'regulates involuntary functions such as heart rate and digestion' is part of the autonomic nervous system.
Conclude that the primary function of the somatic nervous system is to control voluntary movements of skeletal muscles, distinguishing it from the autonomic nervous system which manages involuntary functions.
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