Textbook Question
Destruction of the ventral horn cells of the spinal cord results in loss of
a. Integrating impulses
b. Sensory impulses
c. Voluntary motor impulses
d. All of these
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13. The Peripheral Nervous System
Introduction to the Peripheral Nervous System
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What is the primary role of the somatic nervous system?
A
To regulate involuntary functions like heart rate
B
To manage the fight-or-flight response
C
To maintain homeostasis in the body
D
To control voluntary muscle movements
Verified step by step guidance1
Understand the somatic nervous system: It is a part of the peripheral nervous system responsible for voluntary control of body movements via skeletal muscles.
Differentiate between voluntary and involuntary functions: Voluntary functions are those that you consciously control, such as moving your arm, while involuntary functions are automatic, like heart rate regulation.
Identify the components of the somatic nervous system: It includes motor neurons that connect the central nervous system to the muscles, allowing for conscious movement.
Consider the role of the somatic nervous system in muscle movement: It sends signals from the brain to the muscles, enabling actions like walking, writing, or speaking.
Conclude the primary role: The somatic nervous system's main function is to control voluntary muscle movements, distinguishing it from systems that manage involuntary functions or responses.
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