Effects of Strontium Ions on Heart Muscle: II. Influence on Excitability, Conduction and Potassium Efflux
- 1 January 1966
- journal article
- research article
- Published by Taylor & Francis in Archives Internationales de Physiologie et de Biochimie
- Vol. 74 (3) , 461-475
- https://doi.org/10.3109/13813456609059925
Abstract
The influence of substitution of extracellular Ca by Sr on excitability and conduction in papillary muscles, isolated hearts of rats and frogs and isolated auricles of cats and rabbits was studied. K efflux was measured in cat papillary muscles. Strontium was found to depress the spontaneous frequency, direct excitability and conduction velocity. Absolute and effective refractory periods were prolonged and the K efflux in stimulated papillary muscles was increased.Keywords
This publication has 16 references indexed in Scilit:
- Influence of Potassium and Calcium on Behavior of Isolated Rat Atria.Experimental Biology and Medicine, 1963
- Kalium-Fluxe am Vorhof des FroschherzensPflügers Archiv - European Journal of Physiology, 1962
- Die Bedeutung von Calcium, Magnesium, Kalium und Natrium für die rhythmische Erregungsbildung im Sinusknoten des WarmblüterherzensPflügers Archiv - European Journal of Physiology, 1959
- An antagonism in the action of calcium and strontium ions on the frog's heartJournal of Cellular and Comparative Physiology, 1957
- DIGOXIN, OUABAIN AND POTASSIUM MOVEMENTS IN RABBIT AURICLESBritish Journal of Pharmacology and Chemotherapy, 1957
- THE PULSATILE NATURE OF THE RELEASE OF POTASSIUM FROM HEART MUSCLE DURING THE SYSTOLEAnnals of the New York Academy of Sciences, 1957
- Effect of Several Cations on Transmembrane Potentials of Cardiac MuscleAmerican Journal of Physiology-Legacy Content, 1956
- Kinetics of Potassium Transfer in the Left Ventricle of the Intact DogAmerican Journal of Physiology-Legacy Content, 1955
- A quantitative description of membrane current and its application to conduction and excitation in nerveThe Journal of Physiology, 1952
- On the relations to electrolytes of the hearts of different species of animals1The Journal of Physiology, 1912