The effect of pH on the mechanical activity of the frog toe muscle.
D000818:Animals; D001001:Anura; D001692:Biological Transport; D002110:Caffeine / Q000494:pharmacology; D002118:Calcium / Q000378:metabolism*; D002127:Calcium Isotopes; D002462:Cell Membrane; D005260:Female; D006863:Hydrogen-Ion Concentration; D008297:Male; D009119:Muscle Contraction; D011188:Potassium / Q000494:pharmacology*; D012621:Seasons; D014034:Toes
D002127:Calcium Isotopes; D002110:Caffeine; D011188:Potassium; D002118:Calcium