external application of bk or iontophoretic injection of extrinsic inositol 1,4,5-trisphosphate ( insp3 ) into the cytoplasm of ng108-15 cells produced membrane hyperpolarization in the hybrid cells and an increase in the frequency of miniature end-plate potentials ( mepps ) in paired myotubes .
C0010834
cytoplasm
C0007634
cells