the chief cells can be qualitatively subclassified into light , dark and intermediate variants , but quantitatively there is no difference among these variants with regard to the volume densities of mitochondria , lamellar rough endoplasmic reticulum , golgi complex , secretory granules and storage granules , suggesting that the subclassification of the chief cells plays no functional role .
C0230779
rough endoplasmic reticulum
C0007634
the