Summary and Conclusions
1. Glycerinated frog’s stomach muscle fromRana tigrina does not respond to ATP with contraction. As this muscle responds physiologically like other muscles, this throws doubt on the accepted role of ATP in muscular contraction.
2. In a few glycerinated muscles ATP has produced active relaxation. As the number of positive results is small, they are of doubtful value. But theoretically such a possibility exists as increased metabolism definitely occurs during relaxation.
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Singh, I. Absence of response to adenosinetriphosphate in a glycerinated unstriated muscle. Proc. Indian Acad. Sci. 48, 131–135 (1958). https://doi.org/10.1007/BF03050492
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DOI: https://doi.org/10.1007/BF03050492