5 Questions
What are the two divisions of the autonomic nervous system and how do they differ in function?
The two divisions are sympathetic (thoracolumbar outflow) and parasympathetic (craniosacral outflow). They work in opposing manners; sympathetic activity predominates in stressful situations and is used for energy utilization, while parasympathetic activity conserves energy and is active during rest.
Explain the role of the autonomic nervous system in controlling the body's functions.
The autonomic nervous system controls involuntary body functions such as heart rate, gland secretion, blood vessel constriction/dilation, and pupil size, playing a major role in maintaining homeostasis.
What parts of the brain control the autonomic nervous system?
The autonomic nervous system is controlled by the hypothalamus and medulla oblongata, which receive information from the limbic system and cerebrum.
Describe the effects of autonomic stimulation on the body.
Autonomic stimulation can lead to changes in heart rate and force, secretion of glands, blood vessel constriction/dilation, bronchial constriction/dilation, and pupil size.
How does the autonomic nervous system contribute to maintaining homeostasis?
The autonomic nervous system rapidly and involuntarily controls essential body functions, such as heart rate and blood vessel constriction/dilation, to maintain the body's internal balance and stability (homeostasis).
Test your knowledge of the autonomic nervous system with this quiz! Explore the involuntary functions controlled by this part of the nervous system and deepen your understanding of its role in regulating body functions.
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