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Related Concept Videos

Autonomic Nervous System01:22

Autonomic Nervous System

12.8K
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.
The ANS comprises two main divisions: the sympathetic and parasympathetic divisions. These divisions function antagonistically to maintain a dynamic...
12.8K
Autonomic Nervous System: Overview01:26

Autonomic Nervous System: Overview

7.5K
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...
7.5K
Disorders of the Autonomic Nervous System01:18

Disorders of the Autonomic Nervous System

1.6K
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.
Raynaud's disease, also known as Raynaud's...
1.6K
Drugs Acting on Autonomic Ganglia: Stimulants01:23

Drugs Acting on Autonomic Ganglia: Stimulants

2.1K

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...
2.1K
Drugs Acting on Autonomic Ganglia: Blockers01:28

Drugs Acting on Autonomic Ganglia: Blockers

1.7K
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:
1.7K
Non-LTR Retrotransposons03:18

Non-LTR Retrotransposons

13.4K
As the name suggests, non-LTR retrotransposons lack the long terminal repeats characteristic of the LTR retrotransposons. Additionally, both LTR and non-LTR retrotransposons use distinct mechanisms of mobilization. Non-LTR retrotransposons are further divided into two classes - Long interspersed nuclear elements (LINEs) and short interspersed nuclear elements (SINEs), both of which occur abundantly in most mammals, including humans. Some of the active non-LTR retrotransposons in humans are L1...
13.4K

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Related Experiment Video

Updated: Jan 31, 2026

Quantitative Autonomic Testing
11:40

Quantitative Autonomic Testing

Published on: July 19, 2011

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Autonomic dysfunction.

Tomohiko Nakamura, Gen Sobue

    Nihon Rinsho. Japanese Journal of Clinical Medicine
    |December 20, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Most Parkinson's disease (PD) patients experience autonomic symptoms like constipation and sweating, which are often missed. Early recognition of these Parkinson's symptoms is crucial for diagnosis and treatment, improving patient quality of life.

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    Development of an Algorithm to Perform a Comprehensive Study of Autonomic Dysreflexia in Animals with High Spinal Cord Injury Using a Telemetry Device
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    Measuring Cardiac Autonomic Nervous System ANS Activity in Children

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    Area of Science:

    • Neurology
    • Autonomic Nervous System Research
    • Parkinson's Disease Pathophysiology

    Background:

    • Autonomic symptoms are prevalent in Parkinson's disease (PD), significantly impacting patient prognosis.
    • Common symptoms include orthostatic hypotension, gastroparesis, constipation, excessive sweating, and sexual dysfunction.
    • These symptoms are frequently underrecognized and untreated by clinicians.

    Purpose of the Study:

    • To highlight the diagnostic value of early autonomic symptoms in Parkinson's disease.
    • To emphasize the need for early recognition and treatment of autonomic dysfunction in PD.
    • To underscore the link between autonomic symptoms and the neurodegenerative process in PD.

    Main Methods:

    • Review of current understanding of autonomic dysfunction mechanisms in PD.
    • Analysis of the early appearance and diagnostic significance of autonomic symptoms.
    • Discussion on the clinical implications of recognizing and treating these symptoms.

    Main Results:

    • Autonomic dysfunction in PD involves central and peripheral nervous system pathways.
    • Certain autonomic symptoms precede motor symptom onset in PD, offering diagnostic potential.
    • Underrecognition of these symptoms by clinicians is a significant barrier to timely intervention.

    Conclusions:

    • Early identification of autonomic symptoms is essential for understanding Parkinson's disease progression.
    • Physicians must recognize and treat autonomic complications to improve the quality of life for PD patients.
    • Addressing autonomic dysfunction is critical for comprehensive Parkinson's disease management.