Multiple Choice
Which of the following would cause vasodilation of arterioles in the autonomic nervous system?
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14. The Autonomic Nervous System
Introduction to the Autonomic Nervous System
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Which of the following functions are controlled by the autonomic nervous system?
A
Voluntary muscle movement
B
Conscious thought processes
C
Heart rate regulation
D
Reflex actions
Verified step by step guidance1
Understand the role of the autonomic nervous system (ANS): The ANS is responsible for involuntary physiological functions, meaning it controls processes that occur without conscious effort.
Identify the functions listed in the problem: Voluntary muscle movement, conscious thought processes, heart rate regulation, and reflex actions.
Analyze each function: Voluntary muscle movement and conscious thought processes are controlled by the somatic nervous system, which governs voluntary actions and conscious control.
Consider heart rate regulation: This is a classic example of an involuntary function controlled by the autonomic nervous system, specifically through its sympathetic and parasympathetic branches.
Evaluate reflex actions: Reflexes are rapid, involuntary responses to stimuli, often mediated by the spinal cord and peripheral nerves, but not directly controlled by the autonomic nervous system.
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