Podcast
Questions and Answers
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?
- Parasympathetic
- Sympathetic (correct)
- Gastrointestinal
- Enteric
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?
- Sympathetic
- Enteric
- Parasympathetic (correct)
- Gastrointestinal
What neurotransmitter is activated by the parasympathetic preganglionic fibers?
What neurotransmitter is activated by the parasympathetic preganglionic fibers?
- Dopamine (DA)
- Epinephrine (Epi)
- Norepinephrine (NE)
- Acetylcholine (ACh) (correct)
Which neurotransmitter is released by postganglionic neurons of the sympathetic nervous system?
Which neurotransmitter is released by postganglionic neurons of the sympathetic nervous system?
Which branch of the autonomic nervous system is responsible for the 'fight or flight' response?
Which branch of the autonomic nervous system is responsible for the 'fight or flight' response?
Where are the preganglionic cell bodies located in the parasympathetic nervous system?
Where are the preganglionic cell bodies located in the parasympathetic nervous system?
Which type of receptor is activated by acetylcholine in the autonomic nervous system?
Which type of receptor is activated by acetylcholine in the autonomic nervous system?
Which of the following is true about the sympathetic nervous system?
Which of the following is true about the sympathetic nervous system?
What is the role of the adrenal medulla in the sympathetic nervous system?
What is the role of the adrenal medulla in the sympathetic nervous system?
Which of the following is a common misconception about the autonomic nervous system?
Which of the following is a common misconception about the autonomic nervous system?
What is the role of the vagus nerve in the autonomic nervous system?
What is the role of the vagus nerve in the autonomic nervous system?
Which of the following best describes the role of the enteric nervous system in relation to the autonomic nervous system?
Which of the following best describes the role of the enteric nervous system in relation to the autonomic nervous system?
Where are the primary cell bodies located in the parasympathetic nervous system?
Where are the primary cell bodies located in the parasympathetic nervous system?
Which neurotransmitter is released by postganglionic neurons of the sympathetic nervous system?
Which neurotransmitter is released by postganglionic neurons of the sympathetic nervous system?
Which neurotransmitter is released by postganglionic neurons of the parasympathetic nervous system?
Which neurotransmitter is released by postganglionic neurons of the parasympathetic nervous system?
Which type of receptor is activated by nAChR in the autonomic nervous system?
Which type of receptor is activated by nAChR in the autonomic nervous system?
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?
Where are the preganglionic cell bodies located in the sympathetic nervous system?
Where are the preganglionic cell bodies located in the sympathetic nervous system?
Which of the following is a common misconception about the autonomic nervous system?
Which of the following is a common misconception about the autonomic nervous system?
Which of the following is true about the sympathetic nervous system?
Which of the following is true about the sympathetic nervous system?
What is the role of the adrenal medulla in the sympathetic nervous system?
What is the role of the adrenal medulla in the sympathetic nervous system?
Which of the following is a function of the parasympathetic nervous system?
Which of the following is a function of the parasympathetic nervous system?
Flashcards
Sympathetic Nervous System
Sympathetic Nervous System
The branch of the autonomic nervous system responsible for "fight or flight" responses. It activates responses that prepare the body for danger, such as increased heart rate, blood pressure, and respiration.
Parasympathetic Nervous System
Parasympathetic Nervous System
The branch of the autonomic nervous system responsible for "rest and digest" responses. It promotes relaxation, digestion, and energy conservation.
Acetylcholine (ACh)
Acetylcholine (ACh)
A neurotransmitter that triggers the activation of parasympathetic nerves, promoting relaxation and digestion.
Norepinephrine (NE)
Norepinephrine (NE)
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S2-S4
S2-S4
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mAChR (Muscarinic Acetylcholine Receptor)
mAChR (Muscarinic Acetylcholine Receptor)
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nAChR (Nicotinic Acetylcholine Receptor)
nAChR (Nicotinic Acetylcholine Receptor)
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Increase Heart Rate
Increase Heart Rate
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Adrenal Medulla
Adrenal Medulla
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Vagus Nerve
Vagus Nerve
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Enteric Nervous System
Enteric Nervous System
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Brainstem
Brainstem
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Sacral Spinal Cord
Sacral Spinal Cord
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IML Column T1-L2
IML Column T1-L2
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Increases Sweat Gland Secretion
Increases Sweat Gland Secretion
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Epinephrine and Norepinephrine
Epinephrine and Norepinephrine
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Relaxes Bladder, Contracts Sphincter
Relaxes Bladder, Contracts Sphincter
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Prevertebral Ganglia
Prevertebral Ganglia
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Parasympathetic Activation Decreases Cardiac Contractility
Parasympathetic Activation Decreases Cardiac Contractility
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Baroreceptors Sense Pressure
Baroreceptors Sense Pressure
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Study Notes
Autonomic Nervous System
- 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
- Acetylcholine is activated by parasympathetic preganglionic fibers.
- Norepinephrine is released by postganglionic neurons of the sympathetic nervous system.
- Acetylcholine is released by postganglionic neurons of the parasympathetic nervous system.
Parasympathetic Nervous System
- Preganglionic cell bodies are located in the brain stem and sacral region of the spinal cord.
- Primary cell bodies are located in the brain stem and sacral region of the spinal cord.
Sympathetic Nervous System
- The adrenal medulla plays a role in the sympathetic nervous system by releasing epinephrine and norepinephrine into the bloodstream.
- Preganglionic cell bodies are located in the thoracic and lumbar regions of the spinal cord.
- The general function of the prevertebral ganglia is to integrate and modulate sympathetic responses.
Receptors
- Muscarinic receptors are activated by acetylcholine in the autonomic nervous system.
- Nicotinic receptors (nAChR) are activated by acetylcholine in the autonomic nervous system.
Miscellaneous
- A common misconception about the autonomic nervous system is that it is only involved in involuntary functions, but it also plays a role in emotional and cognitive responses.
- The vagus nerve plays a key role in regulating the parasympathetic nervous system and is involved in various functions such as heart rate regulation and digestion.
- The enteric nervous system, often referred to as the 'little brain', is a subdivision of the autonomic nervous system that regulates digestion and gastrointestinal function.
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Description
Test your knowledge of the autonomic nervous system with this quiz! Learn about the fight or flight response, the functions of the sympathetic and parasympathetic nervous systems, and more.
