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Effect of divalent cations on the potassium contracture of slow muscle fibers ofRana temporaria

✍ Scribed by H. Schmidt


Publisher
Springer
Year
1987
Tongue
English
Weight
561 KB
Volume
100
Category
Article
ISSN
0022-2631

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Effects of Ca2+and other divalent cation
✍ P. Krippeit-Drews; H. Schmidt πŸ“‚ Article πŸ“… 1992 πŸ› Springer 🌐 English βš– 787 KB

Slow muscle fibers were dissected from cruralis muscles of Rana esculenta and Rana pipiens. Isometric contractures were evoked by application of K(+)-rich Ringer's containing Ca2+, Ni2+, Co2+, Mn2+ or Mg2+. High (7.2 mmol/liter) external Ca2+ concentration raised, 0 Ca2+ lowered the K+ threshold. Re