these cells are mainly characterized by infolded basal membranes , long microvilli of a peculiar shape , non-folded lateral membranes bordering intercellular spaces , apical concentrations of elongate and cup-shaped macromitochondria , a basally located rough endoplasmic reticulum , an apically situated smooth endoplasmic reticulum and apical concentrations of micropinocytotic vesicles .
C0007634
cells
C0230653
micropinocytotic vesicles