Entrance of colloidal ThO2 tracer into the T tubules and longitudinal tubules of the guinea pig heart.
D000818:Animals; D001001:Anura; D002462:Cell Membrane; D003102:Colloids; D006168:Guinea Pigs; D006321:Heart / Q000502:physiology; D008564:Membrane Potentials; D009206:Myocardium / Q000166:cytology*; D009210:Myofibrils; D013911:Thorium Dioxide
D003102:Colloids; D013911:Thorium Dioxide