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Related Concept Videos

Autonomic Nervous System01:22

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The autonomic nervous system (ANS) is a critical component of the peripheral nervous system, primarily responsible for regulating involuntary bodily functions and maintaining homeostasis. It functions in tandem with the central nervous system (CNS) to seamlessly coordinate various physiological processes without the need for conscious control.
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Physiology of Respiration II: Neurogenic Control of Respiration01:22

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The neurogenic control of respiration coordinates various neural networks and pathways to regulate breathing rate and depth, meeting the body's oxygen and carbon dioxide exchange requirements. This system adapts to physiological and environmental conditions, ensuring optimal breathing patterns.
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Autonomic Nervous System: Overview01:26

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The human nervous system is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS is composed of the brain and spinal cord, while the PNS contains nerve cells, clusters of nerve cells, and the sensory receptors that are outside the CNS. The PNS has two types of nerve cells: sensory (afferent) and motor (efferent). Sensory cells send signals to the CNS from receptors, and motor cells carry signals from the CNS to organs, muscles, and...
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Disorders of the Autonomic Nervous System01:18

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The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
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Ganglionic stimulants activate NM nicotinic receptors in autonomic ganglia, falling into two categories: nicotine mimetics [e.g., lobeline, dimethylpiperazine, tetramethylammonium] and muscarinic receptor agonists [e.g., muscarine, methacholine]. The first category's action is rapid and blocked by nicotinic receptor antagonists, while the second category's action is delayed and blocked by atropine-like agents. Nicotine, an alkaloid, affects the heart rate by stimulating...
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Drugs Acting on Autonomic Ganglia: Blockers01:28

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Ganglionic blockers inhibit autonomic activity by blocking nicotinic receptors in the autonomic ganglia, suppressing impulse transmission. These blockers lack selectivity between sympathetic and parasympathetic ganglia and are ineffective as neuromuscular junction antagonists. They can be categorized into two groups:
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Culture of Neurospheres Derived from the Neurogenic Niches in Adult Prairie Voles
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[Neurogenic autonomic dysfunction in adults].

Astrid Juhl Terkelsen1, John Hansen, Anja Klostergaard

  • 1astrterk@rm.dk.

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Summary
This summary is machine-generated.

Neurogenic autonomic dysfunction (NAD) is often missed in patients with orthostatic hypotension and multi-system symptoms. Early clinical and neurophysiological evaluation is crucial for diagnosing NAD and identifying underlying causes.

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Area of Science:

  • Neurology
  • Autonomic Neuroscience

Background:

  • Neurogenic autonomic dysfunction (NAD) is frequently underdiagnosed.
  • Patients often present with orthostatic hypotension and multi-systemic symptoms.
  • Abnormal neurological examination findings may indicate NAD.

Purpose of the Study:

  • To highlight the underdiagnosis of NAD.
  • To emphasize the importance of comprehensive autonomic nervous system evaluation.
  • To outline potential underlying conditions associated with NAD.

Main Methods:

  • Clinical examination of the autonomic nervous system.
  • Neurophysiological testing.
  • Standardized paraclinical evaluations.

Main Results:

  • NAD is likely present in patients with specific clinical presentations.
  • A combination of clinical, neurophysiological, and paraclinical assessments is recommended.
  • NAD can be associated with a wide range of conditions.

Conclusions:

  • Comprehensive evaluation is necessary for diagnosing NAD.
  • Early diagnosis can facilitate timely management.
  • Recognizing NAD is critical for identifying diverse underlying pathologies.