伸展による筋の電動的効果(第二部)
スポンサーリンク
概要
- 論文の詳細を見る
As regards the potential change of the muscle by sudden stretching, results hitherto reported are confronting. To make the problem clearer, the present author utilized a special fluid electrode after Sugi (so-called Sugi's insulating vessel). The muscle was connected to a load which could be suddenly released to stretch the muscle with a special equipment. The potential difference across the separating wall was led through the electrodes placed in compartments to an amplifier and Braun tube oscilloscope. 1) The muscle showed negative potential of a few millivolt at the time of sudden stretch (Fig. 3). 2) The size of this potential was proportional to the degree of stretching not to the tension (Fig. 4). 3) The negative potential developed at the initial phase of stretching decreased gradually in the course of time, while the length of muscle still continued to increase. The mechanisms underlying the phenomena are not identical in the initial and delayed phases. 4) Action potential of the stretched muscle was smaller than that of the control muscle. 5) The stretching potential increased at the side of the muscle applied with anodic current, decreased at the side of cathodic current. 6) Influences of various salts, ions and their concentrations on the stretching potential were investigated with the result that the size of the potential were arranged in order K > Rb > NH_4 ; Na > Li ; though partially an accordance with Hofmeister's series, and that the potentialities of monovalent cations were superior to that of bivalent cations. 7) From the observations that these factor's interfere with the stretching potential, some speculative insight into the mechanism of the stretching potential was indicated. Depolarization as the result of the change of the property of the muscle membrane, probably the change of the permeability of the stretched plasma membrane are considerd.
- 千葉大学の論文
- 1962-07-20
千葉大学 | 論文
- ネットワーク時代の画像参照システム : イントラネットの応用とDICOMに準拠した新しいPACS
- 6. Scedosporium apiospermumによる肺真菌症の1例(第1014回千葉医学会例会・第35回肺癌研究施設例会)
- 26. 肺胞マクロファージの貪食能を測定し得た肺胞蛋白症の1例(第927回千葉医学会例会・第30回肺癌研究施設例会)
- 2. RA経過中金製剤によると思われる間質性肺炎をきたした1例(第777回 千葉医学会例会・第22回 肺癌研究施設例会)
- 6.Bronchial atresiaの1症例(第756回 千葉医学会例会・第21回 肺癌研究施設例会)