while in the adult pig the ps cell cytoplasm is almost totally occupied by a large lipid droplet , in the young animal it contained only a few small lipid droplets , accompanied by a well-developed granular endoplasmic reticulum and golgi-apparatus , microtubules and filaments 5-6 nm in diameter .
C0010834
cytoplasm
C0230779
granular endoplasmic reticulum