Summary
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(1)
The excitation produced by vagus stimulation has an inhibitory component.
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(2)
Tonus is antagonistic to vagus stimulation.
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(3)
The optimum temperature for vagus stimulation is 30° C.
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(4)
The optimum concentration of calcium is about 0·05-0·07 M CaCl, potassium about 0·06 M KCl and hydrogen ions, pH 7·8-7·4.
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(5)
The stimulation produced by vagus and acetylcholine does not belong to the potassium group. It resembles more that produced by alternating current.
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References
McSwiney, B. A.Physiol. Rev., 1931.
Singh, I.J. Physiol., 1940,98, 155.
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Narayana, B., Singh, I. Indirect stimulation of unstriated muscle. Proc. Indian Acad. Sci. 20, 192–194 (1944). https://doi.org/10.1007/BF03049800
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DOI: https://doi.org/10.1007/BF03049800