Ultrastructural Observation of Tunicate Heart with Special Reference to the Possible Conducting System in the Suture
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概要
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Fine structures of the heart of a tunicate, Ciona intestinalis, were examined with special attention to the localization of the nexus responsible for the conduction of excitation. In the muscle cell layer, the nexuses were found to be randomly distributed along the intercellular space including not only the apical surface border but also the luminal surface border. At the suture, there are specialized cells which have no myofibrils and are interconnected with each other and with adjacent muscle cells with the nexuses. These results are consistent with the view that the conducting system is located along the suture.
- 社団法人日本動物学会の論文
- 1977-09-25
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