Archive for the ‘Heart’ Category

Vagal fibers to the heart predominantly innervate the sinoatrial node, atrial musculature, and A^ node. Direct vagal stimulation leads to sinus bradycardia which is abolished by administration of atropine.6 Heart rate responses to the Valsalva maneuver in our patient suggested normally functioning vagal efferents to the heart. Electrophysiologic measurements indicated normal function of the conduction […]

Vomiting is a protective reflex stimulated mainly by afferents from the gastrointestinal tract. The efferent control of vomiting is via the vagi and sympathetic system. It is normally accompanied by slight tachycardia or bradycardia. Unlike swallowing, symptomatic disturbances of cardiac rhythm have not been well documented with vomiting. buy antibiotics online Case Report A 52-year-old […]