The<unk>  is a portion of a kidney consisting of a renal pyramid and the renal cortex above it. 
It is visible without a microscope, though it is easier to see in humans than in animals.
It is comprised of many<unk> les, which are not visible without a microscope.
Renal lobe
Renal medulla
Adrenal cortex
Adrenal medulla
Renal corpuscle
Pelvic kidney
Pancreas
Renal tubule