the epiblast cells show a stable vitelline reserve , though the relative proportions of lipid bodies and yolk droplets vary : the volume density of yolk droplets increases from stage 5 ( 3.1 % ) to stage 8 ( 7.7 % ) , while the lipid bodies diminish from 7 to 3.6 % during this period .
C0007634
cells
C0230704
lipid bodies