ultrastructural morphometry ( point-counting method ) was used to evaluate stereological parameters of rough endoplasmic reticulum ( rer ) , golgi complex , secretory granules , mitochondria and lysosomes of rana ridibunda pituitary corticotropic ( acth ) cells in animals subjected to constant environmental conditions ( cec ) in relation to temperature and photoperiod .
C0230779
rough endoplasmic reticulum
C0007634
cells