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Active electric properties of cardiac muscle

✍ Scribed by David B. Geselowitz; W. T. Miller III

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
267 KB
Volume
3
Category
Article
ISSN
0197-8462

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✦ Synopsis

Abstract

A model of electrical activity in the heart has been developed that treats the intracellular domain and the extracellular domain as electrical syncytia with anisotropic resistivities (bi‐syncytial model). At the microscopic level, propagation is assumed to proceed primarily along the axes of individual cells. Considerations at the macroscopic level relate the transmembrane current to the intracellular and extracellular resistivity and the transmembrane potential. The result is a relationship between instantaneous extracellular potentials and cardiac action potentials.

πŸ“œ SIMILAR VOLUMES

Electrical activity in cardiac mutant ax
Electrical activity in cardiac mutant axolotl hearts
✍ Epstein, Miles L. ;Lemanski, Larry F. πŸ“‚ Article πŸ“… 1980 πŸ› John Wiley and Sons 🌐 English βš– 523 KB

## Abstract Electrical recordings from the hearts of both cardiac lethal mutant and normal embryos showed the presence of action potentials conducted over the heart tube. Ionic coupling and gap junctions also were observed in both. These results suggest that the absence of heart function in mutant