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Which branch of the autonomic nervous system dilates the pupil?
Which branch of the autonomic nervous system dilates the pupil?
Which branch of the autonomic nervous system constricts the bronchial tubes?
Which branch of the autonomic nervous system constricts the bronchial tubes?
Which branch of the autonomic nervous system increases sweat gland secretion?
Which branch of the autonomic nervous system increases sweat gland secretion?
Which branch of the autonomic nervous system increases heart rate?
Which branch of the autonomic nervous system increases heart rate?
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Which branch of the autonomic nervous system increases lacrimation and salivation?
Which branch of the autonomic nervous system increases lacrimation and salivation?
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Which branch of the autonomic nervous system increases ventricular contraction?
Which branch of the autonomic nervous system increases ventricular contraction?
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Which branch of the autonomic nervous system contracts GI sphincters?
Which branch of the autonomic nervous system contracts GI sphincters?
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Which branch of the autonomic nervous system relaxes the bladder and contracts the sphincter?
Which branch of the autonomic nervous system relaxes the bladder and contracts the sphincter?
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Which branch of the autonomic nervous system has a continuous, basal rate of activity?
Which branch of the autonomic nervous system has a continuous, basal rate of activity?
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Which branch of the autonomic nervous system is dominant at rest?
Which branch of the autonomic nervous system is dominant at rest?
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Which division of the autonomic nervous system is responsible for the 'fight or flight' response?
Which division of the autonomic nervous system is responsible for the 'fight or flight' response?
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Which division of the autonomic nervous system is responsible for the 'rest and digest' response?
Which division of the autonomic nervous system is responsible for the 'rest and digest' response?
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What is the primary neurotransmitter released by parasympathetic preganglionic neurons?
What is the primary neurotransmitter released by parasympathetic preganglionic neurons?
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What is the primary neurotransmitter released by sympathetic postganglionic neurons?
What is the primary neurotransmitter released by sympathetic postganglionic neurons?
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Which part of the autonomic nervous system is functionally related to the adrenal medulla?
Which part of the autonomic nervous system is functionally related to the adrenal medulla?
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What type of receptor does acetylcholine (ACh) activate on parasympathetic postganglionic neurons?
What type of receptor does acetylcholine (ACh) activate on parasympathetic postganglionic neurons?
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Where does the autonomic nervous system primarily act?
Where does the autonomic nervous system primarily act?
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Which chapter of Guyton and Hall's textbook should be read to learn more about autonomic nervous system physiology?
Which chapter of Guyton and Hall's textbook should be read to learn more about autonomic nervous system physiology?
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What is the term for the concept of both sympathetic and parasympathetic innervation of an organ?
What is the term for the concept of both sympathetic and parasympathetic innervation of an organ?
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Which part of the autonomic nervous system is responsible for gastrointestinal function?
Which part of the autonomic nervous system is responsible for gastrointestinal function?
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Which of the following is true about the autonomic nervous system (ANS)?
Which of the following is true about the autonomic nervous system (ANS)?
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What is the neurotransmitter released by postganglionic neurons of the sympathetic nervous system?
What is the neurotransmitter released by postganglionic neurons of the sympathetic nervous system?
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Which of the following is true about the parasympathetic nervous system?
Which of the following is true about the parasympathetic nervous system?
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Which of the following is true about the sympathetic nervous system?
Which of the following is true about the sympathetic nervous system?
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Which of the following is true about the autonomic control of the gastrointestinal (GI) system?
Which of the following is true about the autonomic control of the gastrointestinal (GI) system?
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What is the primary neurotransmitter released by preganglionic neurons of the autonomic nervous system?
What is the primary neurotransmitter released by preganglionic neurons of the autonomic nervous system?
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Which of the following is true about the sympathetic and parasympathetic branches of the ANS?
Which of the following is true about the sympathetic and parasympathetic branches of the ANS?
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What is the primary neurotransmitter released by postganglionic neurons of the parasympathetic nervous system?
What is the primary neurotransmitter released by postganglionic neurons of the parasympathetic nervous system?
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What is the general function of the prevertebral ganglia in the sympathetic nervous system?
What is the general function of the prevertebral ganglia in the sympathetic nervous system?
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Which of the following is true about the neurotransmitter synthesis in the autonomic nervous system?
Which of the following is true about the neurotransmitter synthesis in the autonomic nervous system?
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Study Notes
Autonomic Nervous System (ANS)
- The sympathetic nervous system dilates the pupil.
- The parasympathetic nervous system constricts the bronchial tubes.
- The sympathetic nervous system increases sweat gland secretion.
- The sympathetic nervous system increases heart rate.
- The parasympathetic nervous system increases lacrimation and salivation.
- The sympathetic nervous system increases ventricular contraction.
- The enteric nervous system (part of the autonomic nervous system) contracts GI sphincters.
- The sympathetic nervous system relaxes the bladder and contracts the sphincter.
- The parasympathetic nervous system has a continuous, basal rate of activity.
- The parasympathetic nervous system is dominant at rest.
- The sympathetic nervous system is responsible for the 'fight or flight' response.
- The parasympathetic nervous system is responsible for the 'rest and digest' response.
Neurotransmitters and Receptors
- The primary neurotransmitter released by parasympathetic preganglionic neurons is acetylcholine (ACh).
- The primary neurotransmitter released by sympathetic postganglionic neurons is norepinephrine (NE).
- The sympathetic nervous system is functionally related to the adrenal medulla.
- Acetylcholine (ACh) activates muscarinic receptors on parasympathetic postganglionic neurons.
Anatomy and Function
- The autonomic nervous system primarily acts at the level of smooth muscle, cardiac muscle, and glands.
- The autonomic nervous system is responsible for regulating involuntary functions, such as heart rate, digestion, and respiration.
- Chapter 9 of Guyton and Hall's textbook provides more information on autonomic nervous system physiology.
Key Concepts and Terms
- The term "dual innervation" refers to the concept of both sympathetic and parasympathetic innervation of an organ.
- The enteric nervous system is responsible for gastrointestinal function.
- The autonomic nervous system is capable of regulating the entire body.
- The sympathetic nervous system is a "fight or flight" system, while the parasympathetic nervous system is a "rest and digest" system.
- The autonomic nervous system has a critical role in regulating the gastrointestinal (GI) system.
- Acetylcholine (ACh) is the primary neurotransmitter released by preganglionic neurons of the autonomic nervous system.
- The sympathetic and parasympathetic branches of the ANS have opposing effects on most organs.
- Acetylcholine (ACh) is the primary neurotransmitter released by postganglionic neurons of the parasympathetic nervous system.
- The prevertebral ganglia in the sympathetic nervous system function to integrate and relay sympathetic signals.
- The neurotransmitter synthesis in the autonomic nervous system involves the production of acetylcholine (ACh) and norepinephrine (NE).
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Description
Test your knowledge of the autonomic nervous system and its functions with this quiz. Compare and contrast the sympathetic and parasympathetic nervous systems and explore their roles in fight or flight and rest and digest responses.
