14 Questions
Where are the autonomic centers located that mainly activate the Autonomic Nervous System (ANS)?
The autonomic centers are located in the spinal cord, brain stem, hypothalamus, and portions of the cerebral cortex (limbic cortex).
What are the main topics covered in the study of Autonomic Nervous System (ANS)?
1- Autonomic centers. 2- Organization of Sympathetic & parasympathetic NS. 3- Autonomic (Visceral) reflex arc. 4- Sympathetic fibers in skeletal nerves. 5- Adrenal medulla. 6- Characteristics & distribution of noradrenergic & cholinergic neurons. 7- Sites of adrenergic & cholinergic receptors. 8- Stress response. 9- Drugs acting on ANS.
What are the objectives of studying the Autonomic Nervous System (ANS)?
1- Identify the location of the cell bodies and preganglionic and postganglionic sympathetic and parasympathetic neurons. 2- Identify the neurotransmitters and receptor types involved in neurotransmission within the ANS and its target organs. 3- Describe how various drugs alter neurotransmitter synthesis, storage, release, and reuptake and receptor activation and blockade within the ANS. 4- Compare the overall functions of the parasympathetic and sympathetic nervous systems.
What is the main characteristic of the Autonomic Nervous System (ANS)?
One important characteristic of ANS is the rapidity & intensity with which it can change the visceral function.
What does the Autonomic Nervous System (ANS) control in the body?
The ANS controls the visceral functions of the body such as blood pressure, GIT motility and secretions, urinary bladder emptying, sweating, and body temperature.
Another important characteristic of ANS is the ______ & intensity with which it can change the visceral function
rapidity
The Autonomic Nervous System (ANS) controls the ______ functions of the body
visceral
The Autonomic Nervous System (ANS) is activated mainly by centers located in the spinal cord, brain stem, hypothalamus & portions of cerebral cortex (______ cortex)
limbic
The Autonomic Nervous System (ANS) controls functions such as blood pressure, GIT motility and secretions, urinary bladder emptying, sweating, and body ______
temperature
Identify the ______ involved in neurotransmission within the ANS and its target organs
neurotransmitters and receptor types
Describe how ______ alter neurotransmitter synthesis, storage, release, and reuptake and receptor activation and blockade within the ANS
various drugs
Compare the ______ of the parasympathetic and sympathetic nervous systems
overall functions
The Autonomic Nervous System (ANS) controls the ______ functions of the body
visceral
Another important characteristic of ANS is the ______ & intensity with which it can change the visceral function
rapidity
Study Notes
Autonomic Nervous System (ANS) Overview
- The Autonomic Nervous System (ANS) is mainly activated by centers located in the spinal cord, brain stem, hypothalamus, and portions of the cerebral cortex (limbic cortex).
- The ANS controls involuntary functions of the body, such as blood pressure, gastrointestinal (GIT) motility and secretions, urinary bladder emptying, sweating, and body temperature.
Objectives of Studying ANS
- To understand the functions and regulation of the ANS.
- To appreciate the role of the ANS in maintaining homeostasis.
- To recognize the importance of the ANS in various physiological processes.
Characteristics of ANS
- The ANS has the ability to rapidly change visceral function with varying degrees of rapidity and intensity.
- The ANS is a complex system that regulates involuntary functions of the body.
Neurotransmission in ANS
- Acetylcholine (ACh) and norepinephrine (NE) are involved in neurotransmission within the ANS and its target organs.
- Modulators can alter neurotransmitter synthesis, storage, release, and reuptake, and receptor activation and blockade within the ANS.
Comparison of Parasympathetic and Sympathetic Nervous Systems
- The parasympathetic nervous system promotes relaxation, reduces energy expenditure, and increases digestion.
- The sympathetic nervous system prepares the body for "fight or flight" responses, increasing energy expenditure and reducing digestion.
Topics Covered in the Study of ANS
- Anatomy and physiology of the ANS.
- Functions and regulation of the ANS.
- Neurotransmission and modulation in the ANS.
- Sympathetic and parasympathetic nervous systems.
Test your knowledge of the Autonomic Nervous System with this quiz covering topics such as autonomic centers, organization of sympathetic and parasympathetic nervous system, visceral reflex arc, adrenergic and cholinergic neurons, stress response, and drugs acting on the ANS.
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