phenazine methosulphate ( pms ) or ferricyanide caused ultrastructural damage , including sarcolemma folds and swelling of the sarcoplasmic reticulum ( sr ) , in amphibian skeletal muscle which corresponds with that triggered by a rise in [ ca ] i and which , it is suggested , is caused by the activation of nad ( p ) h oxidases at the sarcolemma ( where it causes sarcolemma folding ) and sr ( where it causes myofilament damage ) .
C0242692
skeletal muscle
C0036208
sarcolemma