Podcast
Questions and Answers
Which of the following is NOT a division of the nervous system?
Which of the following is NOT a division of the nervous system?
Which neurotransmitter is released at the ganglia of the sympathetic nervous system?
Which neurotransmitter is released at the ganglia of the sympathetic nervous system?
What is the primary function of the enteric nervous system?
What is the primary function of the enteric nervous system?
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 the postganglionic fibers of the parasympathetic nervous system?
What is the primary neurotransmitter released by the postganglionic fibers of the parasympathetic nervous system?
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Which division of the nervous system is responsible for voluntary movement and conscious perception?
Which division of the nervous system is responsible for voluntary movement and conscious perception?
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Which receptor type is found on the effector organs innervated by the sympathetic nervous system?
Which receptor type is found on the effector organs innervated by the sympathetic nervous system?
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Study Notes
The Nervous System
- The nervous system is divided into two main parts: Central Nervous System (CNS) and Peripheral Nervous System (PNS)
- The CNS consists of the brain and spinal cord
- The PNS is further divided into two systems: Somatic Nervous System and Autonomic Nervous System (ANS)
Somatic vs Autonomic
- Somatic nervous system: responsible for controlling voluntary movements, such as walking and talking
- Autonomic nervous system: responsible for controlling involuntary functions, such as heart rate and digestion
Autonomic Nervous System (ANS)
- Divided into two subsystems: Sympathetic and Parasympathetic divisions
- The ANS regulates various involuntary functions, including heart rate, blood pressure, and digestion
Divisions of the ANS
- Sympathetic division: stimulates "fight or flight" responses, increasing heart rate and blood pressure
- Parasympathetic division: promotes relaxation and reduces heart rate and blood pressure
- Enteric division: a network of autonomic nerves located in the gut wall that regulates GI motility and secretion
Key Features of the ANS
- Ganglia: clusters of nerve cells outside the CNS
- Pre-ganglionic fibers: neurons that connect the CNS to the ganglia
- Post-ganglionic fibers: neurons that connect the ganglia to the effector organs
- Neurotransmitters: chemical messengers released by neurons to transmit signals, including acetylcholine (ACh) and norepinephrine (NE)
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Description
Test your knowledge of the anatomy and physiology of the autonomic nervous system with this quiz based on the book 'Pharmacology' by Brenner & Stevens, and 'Basic and Clinical Pharmacology' by Katzung & Trevor. Explore key concepts from Chapter 1 in 'Pharmacology 1: Pharmacology of the Autonomic Nervous System'.
