Podcast
Questions and Answers
Which system regulates functions that are not under voluntary control, such as cardiac muscle contractions and smooth muscle contractions?
Which system regulates functions that are not under voluntary control, such as cardiac muscle contractions and smooth muscle contractions?
- Autonomic nervous system (correct)
- Central nervous system
- Somatic nervous system
- Peripheral nervous system
From which regions of the CNS do the sympathetic nerve fibers originate?
From which regions of the CNS do the sympathetic nerve fibers originate?
- Cranial nerve nuclei III, VII, IX, X
- Thoracolumbar regions (correct)
- Lumbar segments 2, 3, 4
- Craniosacral regions
Which division of the autonomic nervous system is responsible for accommodation to stressful conditions?
Which division of the autonomic nervous system is responsible for accommodation to stressful conditions?
- Enteric division
- Somatic division
- Parasympathetic division
- Sympathetic division (correct)
What are the efferent nerve fibers of the autonomic nervous system referred to as?
What are the efferent nerve fibers of the autonomic nervous system referred to as?
Which division of the autonomic nervous system is responsible for maintaining normal physiology?
Which division of the autonomic nervous system is responsible for maintaining normal physiology?
Study Notes
Autonomic Nervous System
- The autonomic nervous system regulates functions that are not under voluntary control, such as cardiac muscle contractions and smooth muscle contractions.
Origin of Sympathetic Nerve Fibers
- Sympathetic nerve fibers originate from the thoracic and lumbar regions of the central nervous system (CNS).
Divisions of Autonomic Nervous System
- The sympathetic division is responsible for accommodation to stressful conditions.
- The parasympathetic division is responsible for maintaining normal physiology.
Efferent Nerve Fibers
- Efferent nerve fibers of the autonomic nervous system are referred to as preganglionic fibers.
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Description
Explore the fundamental concepts of the autonomic nervous system, its role in regulating involuntary bodily functions, and the divisions within this system. Learn about its influence on cardiac muscle contractions, smooth muscle contractions, exocrine gland secretions, and overall metabolism.
