Fine Structure of the His Bundle

摘要: The fine structure of the His bundle is described on basis its light and electron microscopic appearance. Electron microscopy was performed one human two canine hearts, over 400 60 hearts. identified by There were no significant differences in bundles. In both, principal cell a typical Purkinje containing few myofibrils large perinuclear clear zone; these cells are shorter broader than working myocardial cells, their intercellular junctions (which obliquely rather transversely oriented) contain high proportion nexus formations. Both bundles partitioned collagen septa, which longitudinally oriented with comparatively crossover connections. general organization thus into multiple strands largely separated from...