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Which division of the peripheral nervous system does the autonomic nervous system belong to?
Which division of the peripheral nervous system does the autonomic nervous system belong to?
What is the meaning of the word 'autonomic' based on its Latin roots?
What is the meaning of the word 'autonomic' based on its Latin roots?
Which symptoms experienced by the student are controlled by the autonomic nervous system?
Which symptoms experienced by the student are controlled by the autonomic nervous system?
What effect does focusing on transferring knowledge from the brain to paper have on the symptoms experienced by the student?
What effect does focusing on transferring knowledge from the brain to paper have on the symptoms experienced by the student?
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What is the main function of the parasympathetic division of the autonomic nervous system?
What is the main function of the parasympathetic division of the autonomic nervous system?
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What is the main function of the sympathetic division of the autonomic nervous system?
What is the main function of the sympathetic division of the autonomic nervous system?
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What does the autonomic nervous system regulate?
What does the autonomic nervous system regulate?
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Which neurons are the main input and output components of the autonomic nervous system?
Which neurons are the main input and output components of the autonomic nervous system?
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What role does neural crest tissue play in the development of autonomic motor pathways?
What role does neural crest tissue play in the development of autonomic motor pathways?
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What do neural crest cells develop into during the formation of autonomic motor pathways?
What do neural crest cells develop into during the formation of autonomic motor pathways?
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Where do ventrolateral tube cells become preganglionic neurons during the development of autonomic motor pathways?
Where do ventrolateral tube cells become preganglionic neurons during the development of autonomic motor pathways?
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Where do the migrating crest cells form two distinct populations of developing neurons during the formation of autonomic motor pathways?
Where do the migrating crest cells form two distinct populations of developing neurons during the formation of autonomic motor pathways?
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Where does the initial neuronal relationship between the neural tube cell, the migrating crest cell, and smooth muscle and gland cells in the developing gut wall arise?
Where does the initial neuronal relationship between the neural tube cell, the migrating crest cell, and smooth muscle and gland cells in the developing gut wall arise?
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What does the neuronal pattern establish in the craniosacral outflow to the gut tube during the development of autonomic motor pathways?
What does the neuronal pattern establish in the craniosacral outflow to the gut tube during the development of autonomic motor pathways?
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Where do the migrating neural crest cells establish connections with the developing smooth muscle cells in the walls of the blood vessels during the formation of autonomic motor pathways?
Where do the migrating neural crest cells establish connections with the developing smooth muscle cells in the walls of the blood vessels during the formation of autonomic motor pathways?
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Which division of the nervous system usually operates without conscious control?
Which division of the nervous system usually operates without conscious control?
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Which part of the CNS regulates the autonomic nervous system?
Which part of the CNS regulates the autonomic nervous system?
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Which type of muscle does the ANS regulate?
Which type of muscle does the ANS regulate?
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What type of responses are the basis for polygraph tests?
What type of responses are the basis for polygraph tests?
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Which type of neurons convey input from somatic and special senses?
Which type of neurons convey input from somatic and special senses?
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Which type of neurons innervate skeletal muscles?
Which type of neurons innervate skeletal muscles?
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What do autonomic sensory neurons convey information about?
What do autonomic sensory neurons convey information about?
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Which system influences reflexive and voluntary movements of the musculoskeletal system?
Which system influences reflexive and voluntary movements of the musculoskeletal system?
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Which type of muscles become paralyzed when stimulation ceases?
Which type of muscles become paralyzed when stimulation ceases?
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What is the main input to the autonomic nervous system?
What is the main input to the autonomic nervous system?
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Which part of the CNS regulates the ANS with distinct structural and functional differences from the somatic nervous system?
Which part of the CNS regulates the ANS with distinct structural and functional differences from the somatic nervous system?
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Which division of the ANS has different structures, functions, and neurotransmitters?
Which division of the ANS has different structures, functions, and neurotransmitters?
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What is the function of autonomic neurons?
What is the function of autonomic neurons?
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How many motor neurons are involved in autonomic motor pathways?
How many motor neurons are involved in autonomic motor pathways?
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Where is the cell body of the preganglionic neuron located?
Where is the cell body of the preganglionic neuron located?
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What type of axon does the postganglionic neuron have?
What type of axon does the postganglionic neuron have?
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In some autonomic pathways, where does the preganglionic neuron extend to?
In some autonomic pathways, where does the preganglionic neuron extend to?
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What neurotransmitters do autonomic motor neurons release?
What neurotransmitters do autonomic motor neurons release?
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How many divisions are there in the autonomic nervous system?
How many divisions are there in the autonomic nervous system?
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What is the function of sympathetic activities?
What is the function of sympathetic activities?
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What happens to the heart rate during a stress response?
What happens to the heart rate during a stress response?
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Where is the majority of the output of the sympathetic division directed?
Where is the majority of the output of the sympathetic division directed?
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What is part of the body's response to stress?
What is part of the body's response to stress?
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Study Notes
Autonomic Nervous System Anatomy and Function
- Autonomic neurons are associated with interoceptors, such as chemoreceptors and mechanoreceptors.
- Autonomic motor pathways consist of two motor neurons in series.
- The first neuron is the preganglionic neuron with its cell body in the CNS, and its myelinated axon extending to an autonomic ganglion.
- The second neuron is the postganglionic neuron with its cell body in the autonomic ganglion and an unmyelinated axon extending to the effector.
- In some autonomic pathways, the preganglionic neuron extends to specialized cells of the adrenal medullae called chromaffin cells.
- Autonomic motor neurons release either acetylcholine (ACh) or norepinephrine (NE).
- Sympathetic and parasympathetic divisions are the two divisions of the autonomic nervous system.
- Most organs have dual innervation, receiving impulses from both sympathetic and parasympathetic neurons.
- Sympathetic activities prepare the body for emergency situations, resulting in increased alertness and enhanced metabolic activities.
- Responses to stress include rapid heart rate, faster breathing rate, and dilation of blood vessels to organs involved in combating stress.
- The majority of the output of the sympathetic division is directed at the smooth muscle of blood vessels.
- The release of glucose from the liver is part of the body's response to stress.
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Description
Test your knowledge of the autonomic nervous system with this quiz on its anatomy and function. Explore the organization of autonomic motor pathways, neurotransmitter release, sympathetic and parasympathetic divisions, and the physiological responses to stress.
