Autonomic Nervous System

Author(s):  
Eduardo E. Benarroch ◽  
Jeremy K. Cutsforth-Gregory ◽  
Kelly D. Flemming

The autonomic nervous system is a critical effector of an internal regulation system that controls functions necessary for survival. Autonomic outputs regulate the activity of the heart; the smooth muscle of the blood vessels, pupil, and visceral organs; and the exocrine glands. The autonomic nervous system includes 3 subdivisions: the sympathetic, parasympathetic, and enteric nervous systems. Autonomic disorders may be prominent manifestations of several neurologic diseases and, in some cases, may be valuable in localizing lesions in the nervous system.

2020 ◽  
pp. 6150-6165
Author(s):  
Christopher J. Mathias ◽  
David A. Low

The autonomic nervous system innervates all organs, producing predominantly involuntary and automatic actions that are mediated by two principal efferent pathways, the sympathetic and parasympathetic, which are neurochemically and anatomically distinct. Numerous synaptic relays and neurotransmitters allow the autonomic control of organ function at local and central levels to be integrated with the requirements of the whole body. The peripheral and central components of the autonomic nervous system are frequently affected by diseases, conditions, or toxins. Autonomic disorders are described as (1) primary—without defined cause, including multiple system atrophy and acute/subacute dysautonomias; or (2) secondary—with specific defects or as a consequence of other conditions, including diabetes mellitus, Riley–Day syndrome, amyloid neuropathy, dopamine β‎-hydroxylase deficiency, spinal cord injury, and many drugs.


2021 ◽  
pp. 158-168
Author(s):  
Jeremy K. Cutsforth-Gregory

The autonomic nervous system is involved in many important unconscious body functions. It is critical for maintaining the internal environment in response to changes in the external environment. The autonomic nervous system consists of peripheral components (sympathetic and parasympathetic nerves and ganglia) and central components (ventrolateral medulla, nucleus ambiguus, nucleus of the solitary tract, periaqueductal gray, anterior cingulate gyrus, insular cortex, amygdala, and hypothalamus). This chapter briefly reviews the anatomy and functional components of the autonomic nervous system and several anatomical clinical correlations.


Neuroanatomy ◽  
2017 ◽  
pp. 117-138
Author(s):  
Adam J Fisch

This chapter provides an overview of the autonomic nervous system and respective instructions for drawing its various components. These include the, parasympathetic nervous system, sympathetic nervous system, lower urinary system, baroreceptor reflex, respiration, and digestive tract. The chapter discusses the various functions of elements of these systems, and it presents conditions and illnesses specifically related to disorders in elements of the autonomic nervous system, such as cardiac rhythm abnormalities (arrhythmias), respiratory failure, gut dysmotility, bladder dysmotility, and skin manifestations, such as hair fiber loss and sweating.


How to Land ◽  
2018 ◽  
pp. 107-138
Author(s):  
Ann Cooper Albright

This chapter weaves an in-depth discussion of the physical function of releasing our bodies into the support of gravity with an analysis of how that experience can serve as an important stability in our daily lives. It begins by reviewing the crucial distinction between collapsing and yielding in order to demonstrate how the same force that draws us to the ground can also sponsor our action in the world, helping us find a sense of resistance and agency. In addition, gravity can provide a useful counterbalance to the ubiquitous presence of two-dimensional screens in our lives. By allowing us to experience weight, gravity is key to our sense of grounding, linking inhalation with exhalation, sky to earth, as well as the sympathetic and parasympathetic aspects of our autonomic nervous system.


Author(s):  
Adam Fisch

Chapter 6 discusses how to draw the peripheral nervous system, specifically the autonomic nervous system, including autonomic fiber arrangements, the parasympathetic nervous system, the sympathetic nervous system, the urinary system, and the cardiac reflex.


Health of Man ◽  
2021 ◽  
pp. 58-62
Author(s):  
Yurii Gurzhenko ◽  
Volodymyr Spyrydonenko

Every year, the number of patients with chronic prostatitis (CP) in the world is increasing and improving the effectiveness of treatment of this pathology is becoming a priority topic in modern urology. One of the complications of CP is sexual dysfunction, primarily premature ejaculation, as well as erectile dysfunction (ED). Treatment of CP and its sexual complications is an individual and complex complication. It is undeniable that sildenafil citrate plays an important role in the treatment of ED as a complication of CP. The hypothetical mechanism of the effectiveness of PDE-5 in CP is mediated by the relaxation of the smooth muscles of the ducts of the software, the effect of increasing the drainage of the components that are formed due to reflux in the interstitial tissue. The above phenomenon can suppress inflammation and cause a reduction in prostatic symptoms. Increased activity of NO-synthetase and PDE-5 in the tissues of PO promotes the formation of muscle relaxant effects, drainage of the acinus, reduced activity of the autonomic nervous system and activation of vascular circulation in the PVC and structures of the lower urinary tract. Current scientific evidence indicates that PDE-5 inhibitors can improve lower urinary tract symptoms by relaxing bladder smooth muscle fibers and PO, by signaling NO / cGMPc, or by improving RhoA / Rho kinase. Some results suggest that in addition to the effects of reducing the hyperactivity of the autonomic nervous system, dilation of cavernous vessels and antiproliferative effect, PDE-5 have a direct anti-inflammatory effect, increasing the level of cGMP. The accumulation of the latter can inhibit inflammation and can be a potential mechanism for preventing the development of diseases in which inflammation plays a central role. Given that inflammation is a major factor in the progression of CP, sildenafil citrate is able to restore PO function because they act as potent anti-inflammatory drugs. Thus, PDE-5 inhibitors can not only mediate smooth muscle relaxation, but can also directly reduce inflammation in the software by increasing cGMP levels. Based on theoretical data on the positive effect of sildenafil on the erectile component and symptoms of the lower urinary tract in persons with CP with complications such as ED, it can be considered that the inclusion of sildenafil citrate in sequential standard therapy for CP reduces indicators of erectile function. The appointment of sildenafil citrate in patients with complications of CP in the form of ED improves the quality of erections in patients, and also has a positive effect on various other indicators of male sexual function (enhances orgasm, increases the duration of sexual intercourse).


1995 ◽  
Vol XXVII (3-4) ◽  
pp. 37-38
Author(s):  
М. F. Ismagilov

Vegetative disorders are one of the urgent problems of modern medicine. This is due to a number of factors, first of all - the huge prevalence of autonomic disorders. The autonomic nervous system (ANS) is an apparatus for controlling all organs and systems that determines homeostasis.


Author(s):  
Christopher J. Mathias ◽  
David A. Low

The autonomic nervous system innervates all organs, producing predominantly involuntary and automatic actions that are mediated by two principal efferent pathways, the sympathetic and parasympathetic, which are neurochemically and anatomically distinct. Numerous synaptic relays and neurotransmitters allow the autonomic control of organ function at local and central levels to be integrated with the requirements of the whole body....


Sign in / Sign up

Export Citation Format

Share Document