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細胞外電位と細胞内電位の微分波形との関係 Relationship between extracellular potential and pattern of differentiated intracellular potential ja ja ja 猪股, 孝四郎 太田, 勲 倉橋, 昌司 INOMATA, Koshiro OOTA, Isao KURAHASHI, Masashi Differentiated pattern of intracellular potential extracellular potential time constant in cell membrane cell in abdominal ganglion of Aplysia P(論文) Intracellular and extracellular potentials from one cell that spontaneously discharged in the Aplysia abdominal ganglion (R10, 11, 12, L10, 12, 13) were recorded simultaneously and summarized as follows: 1. The amplitude of intracellular action potential was 50-70mV and the amplitude of extracellular potential was about 0.3mV. 2. The pattern of extracellular action potential was similar to the differential pattern of intracellular action potential. 3. In the time course, there was a time lag between the pattern of extracellular action potential and differential pattern of intracellular action potential. It became clear that this time lag depended upon the time constant in the electrical circuit. 4. From the above results, we concluded that the intracellular action potential was differentiated by the electrical circuit in the cell membrane and shown as extracellular action potential. 5. The hypothesis of Inomata et al. was supported by the results. 2005-12-30 jpn departmental bulletin paper https://hsuh.repo.nii.ac.jp/records/9981 AA12060694 北海道医療大学歯学雑誌 24 2 139 142 https://hsuh.repo.nii.ac.jp/record/9981/files/KJ00004355556.pdf application/pdf 377.0 kB 2005-12-30