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Resting membrane potential in chick muscle cells during ontogeny

✍ Scribed by Boëthius, Jörgen ;Knutsson, Evert

Publisher
John Wiley and Sons
Year
1970
Tongue
English
Weight
395 KB
Volume
174
Category
Article
ISSN
0022-104X

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✦ Synopsis

Abstract

Resting membrane potentials were recorded from developing thing muscle cells of the chick at different stages from the third day of incubation. During the early stages the membrane potentials were lower than in the adult animal. No significant changes in potentials were observed until after the fifteenth day. There was a marked increase between the fifteenth and nineteenth days, and the membrane potential reached values comparable to those of the adult. In a study of the concomitant morphological development, the increase in membrane potentials was found to coincide with the transformation of the majority of the cells from myotubes to myocytes.

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✍ Bennett, A. L. ;Ware, F. ;Dunn, A. L. ;McIntyre, A. R. 📂 Article 📅 1953 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 772 KB

The technique for direct measurement of the difference in potential between the inside and outside of single muscle cells was provided by Graham and Gerard ('46) when they first penetrated frog muscle cells with micro-electrodes consistiiig of extremely fine glass capillaries containing saline. Ling