Gap junctions in the cardiac muscle cells of the lamprey

@article{Shibata2004GapJI,
  title={Gap junctions in the cardiac muscle cells of the lamprey},
  author={Yosaburo Shibata and Torao Yamamoto},
  journal={Cell and Tissue Research},
  year={2004},
  volume={178},
  pages={477-482}
}
SummaryElectron microscopy of both thin sections and freeze-fracture replicas has demonstrated the occurrence of gap junctions (nexuses) in the cardiac muscle cells of the lamprey. These gap junctions are identical in basic structure with those found in the mammalian heart. However, they are much smaller (less than 0.5 μ in diameter), and more irregularly distributed than the typical gap junction in the mammalian heart. These small gap junctions seem to provide a structural basis for the… 

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