Electrical Activity of Single Fibers of the Atrioventricular Node
نویسندگان
چکیده
منابع مشابه
Electrical activity of single fibers of the atrioventricular node.
The mechanism of atrioventricular delay has been studied in isolated rabbit hearts. Multiple intracellular microelectrodes have been employed to obtain simultaneous records from single fibers of atrium, A-V node and His bundle. An appreciable delay in the transmission of excitation has been found only in the atrial portion of the A-V node. Action potentials recorded from single fibers in this a...
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The action of acetylcholine on atrioventricular nodal fibers has been studied with the aid of intracellular microelectrodes. It has been found that during total atrioventricular dissociation no block of conduction occurs at the junction between the A-V node and the bundle of His or within fibers of the atrium. Failure of impulse transmission occurs in fibers in the atrial margin of the A-V node...
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15 صفحه اولSpread of activity through the atrioventricular node.
TRAXSMEMBRANE recording from single fibers of the atrioventricular (A-V) node of the rabbit heart has shown action potentials exhibiting rising phases with a much slower time course than those of plain heart muscle.' It has also been shown that the area in which such nodal potentials are recorded is not sharply delimited, regions being found at each side of the nodal area in which action potent...
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ژورنال
عنوان ژورنال: Circulation Research
سال: 1959
ISSN: 0009-7330,1524-4571
DOI: 10.1161/01.res.7.1.11