characteristics reflecting a cell population capable of synthesis and secretion of proteinaceous substances , namely , dilated golgi apparati , increased numbers of polyribosomes and profiles of rough endoplasmic reticulum ( rer ) , two types of vacuoles and/or vesicles , and intercellular microvillus-lined spaces , were observed in the prehepatocytes between 12 and 17 days gestation .
C0007634
cell
C0018042
golgi