Direct electrical excitation of small cardiac branches from the thoracic vagus elicited highly localized and differential responses from individualized segments of the myocardium. For example, small nerves from the vagus at the level of the superior pulmonary veins frequently induced moderate inhibition in contractile force of the ipsilateral atrium with little or no influences elsewhere. Bran...

BACKGROUND Neurofibromas originating from vagus nerves are rarely reported in the literature. In particular, plexiform neurofibromas of the bilateral cervical vagus nerve are extremely rare. CASE PRESENTATION A 21-year-old female presented with a 2-year history of swelling on the right side of her neck. Physical examination revealed a soft-tissue mass on the right side of her neck. Ultrasonog...

OBJECTIVE To analyze the distribution characteristics of cardiac autonomic nerves and to explore the correlation between cardiac autonomic nerve distribution and arrhythmia. DATA RETRIEVAL A computer-based retrieval was performed for papers examining the distribution of cardiac autonomic nerves, using heart, autonomic nerve, sympathetic nerve, vagus nerve, nerve distribution, rhythm and atria...

The purpose of this study was to examine the effect of secobarbital vs. alpha-chloralose anesthesia, and of tonic autonomic influence, upon ischemia-induced subepicardial and subendocardial bipolar electrogram changes during acute coronary artery occlusion in the open-chest dog. We found that the degree of bipolar electrogram alterations for similar reductions of regional myocardial blood flow ...

Anatomical and electrophysiological techniques were employed to investigate the aortic bodies in anesthetized puppies and dogs. The microscopic appearance, location, innervation, and vasculature of the aortic bodies were investigated by microdissection and histological examination of gelatineinjected preparations. Thoracic chemoreceptor impulses were recorded from the cervical vagus nerves, the...

It has been reported that interdigestive motor activities occur in the gallbladder and sphincter of Oddi as well as in the gastroduodenal tract and truncal vagus nerves modulate the gastroduodenal motility pattern. In the present study, the vagal branches which influence on the interdigestive motor activity of these organs were determined in conscious dogs. In the normal dog, interdigestive mot...