[Cytoplasmic cisterns structurally linked with the plasmalemma in the hepatocytes of mice of different lines]

Structures of the granular endoplasmic reticulum and narrow canals formed by smooth membranes were found in the cell membrane of male mice belonging to strains CBA, C57BL and L-NZB/BLN. The canals were seen connected with plasma membranes. Under the conditions of CC1(4) poisoning of CBA and C57BL mice, these canals were transformed to gigantic cytoplasmic vacuoles. Their cavities were communicated with the extracellular space. It still remains unclear if the membranes of these canals belong to the cytoplasmic membrane or to the endoplasmic reticulum.