THE RELATIONSHIP BETWEEN SODIUM, POTASSIUM, AND CHLORIDE IN AMPHIBIAN MUSCLE

Abstract
The Na,+ Cl-, and K+ content of toad plasma and the sartorius muscle has been determined. Although the Na+ and Cl- level of the muscles in the living animal varied greatly (0 to 38.0 m.eq. per kg., and 0 to 31.8 m.eq. per kg. respectively) the K+ level was subject to a smaller variation (76.5 to 136 m.eq. per kg.). There was a direct relationship between Na+ and Cl-, which was independent of the K+ level.