[Influence of calcium and potassium ions on the parasympathetic stimulation secretory response of the isolated and perfused submandibular gland (author's transl)]. / Influência dos íons cálcio e potássio na resposta secretora da glândula submandibular isolada d perfundida, à estimulação parassimpática

The effects of the submandibular gland perfusion with blood, Tyrode's solution, Tyrode's solution without calcium, and Tyrode's solution without potassium were studied. The effects on sodium, potassium, and calcium concentration in the saliva were studied in 11 dogs during electrical stimulation of the chorda tympani nerve. According to the statistical analysis we assume that: 1) the perfusion of the salivary gland with blood or Tyrode's solution does not alter sodium, potassium, and calcium concentration in the saliva; 2) the salivary perfusion with calcium free Tyrode's solution does not alter the chemical composition of the saliva; 3) the perfusion of the salivary gland with potassium free Tyrode's solution produce a decrease of the concentration of this ion in the saliva composition.