Vagal tuning
نویسندگان
چکیده
منابع مشابه
Vagal Stimulation in Dogs
We determined the effects of changing the spatial dispersion of acetylcholine release on the phase-dependent chronotropic responses to vagal stimulation in anesthetized dogs. We stimulated the vagus nerves with one brief burst of electrical pulses each cardiac cycle, and we changed the timing of the stimulus by a small, constant amount each cardiac cycle to scan the entire cycle. To vary the he...
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The mechanisms responsible for slowing cardiac impulse conduction through the atrioventricular (AV) node are not well understood but include anatomical architecture, presence of cells with diverse electrophysiological characteristics, and modulation by autonomic nervous system. The present study was designed to determine the site of vagally induced slowing of conduction through the AV node. We ...
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................................................................................... ii ACKNOWLEDMENTS ............................................................... iv TABLE OF CONTENTS ...........................................................viii LIST OF FIGURES.....................................................................xii LIST OF ABBREVIATIONS .......................................
متن کاملGlossopharyngeal and vagal neuralgia.
Tic douloureux involving the glossopharyngeal nerve is rare and when it does occur probably often involves the vagus nerve as well. Many cases are undoubtedly not recognized, and yet the condition responds favourably and permanently to intracranial section of the glossopharyngeal nerve and upper filaments of the vagus nerve. We therefore propose to review the literature, discuss our own experie...
متن کاملVagal Atrial Fibrillation
The autonomic nerve system plays an important role in atrial fibrillation (AF). Vagal AF refers AF (generally paroxysmal) arising in contexts of enhanced parasympathetic tone. Heterogeneity of refractoriness and action potential abbreviation resulting from spatially variable parasympathetic enhancement of the acetylcholinedependent K-current (IKACh) underlie vagal AF. Adrenergic influences may ...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 1968
ISSN: 0022-5223
DOI: 10.1016/s0022-5223(19)42875-4