quantitative comparison of selected pinealocyte organelles revealed larger relative volumes of mitochondria , granular endoplasmic reticulum and ribosomes , golgi apparatus , and inclusion bodies , as well as a higher number of dense-core vesicles in the animals kept in short photoperiod ( ld 8:16 ) as compared to those in animals kept in long photoperiod ( ld 16:8 ) .
C0230779
granular endoplasmic reticulum
C0035553
ribosomes