[The relationship between the contractile capacity of the frog myocardium and the concentration of Na, K and Ca ions in the surrounding medium].
D000818:Animals; D001001:Anura; D002118:Calcium / Q000502:physiology*; D004558:Electric Stimulation; D006321:Heart / Q000502:physiology*; D009119:Muscle Contraction; D009129:Muscle Tonus; D011188:Potassium / Q000502:physiology*; D012964:Sodium / Q000502:physiology*
D012964:Sodium; D011188:Potassium; D002118:Calcium
Izmeneniia sokratitel'noĭ sposobnosti miokarda liagushi v zavisimosti ot soderzhaniia ionov Na, K i Ca v okruzhaiushcheĭ srede.