What organs make up the excretory system, and what are some of the diseases of the excretory system?
The excretory system of human beings consists of a pair of kidneys, ureter, urinary bladderand the urethera. The kidney is composed of millions of nephrons the filtering units. The ultra structure of the kidney will tell more about the anatomy and the physiology of urine formation. The diseases associated iwth kidney is varied from simple cyst, kidney stone to kidney tumor.