what are the two main microscopic structures of the kidney
These are referred to as the microscopic anatomy. The internal structure of the kidney is divided into two main areas... a light outer area called the renal cortex, and a darker inner area called the renal medulla. Within the medulla there are eight (8) or more cone-shaped sections known as renal pyramids.idney anatomy encompasses all the tissue-components that collectively form the structure of the kidney. Most humans are born with two kidneys, although one kidney is capable of performing the normal functions of both kidneys. Some people are born with one kidney.