in the presence of 0.5 mm-mg ( 2+ ) ( o ) , the calculated mg ( 2+ ) equilibrium potentials , e ( mg ) , are in the range of -23 to -25 mv , suggesting that mg ( 2+ ) is not passively distributed across the sarcolemma in striated muscle.6 .
C0036208
sarcolemma
C0242692
striated muscle