Pierre and Marie Curie are best known for their pioneering work in the study of radioactivity, which led to their discovery in 1898 of the elements radium and polonium. Marie Curie, b.
Its functions are vital to life and are regulated by the endocrine system by hormones such as antidiuretic hormone, aldosterone, and parathyroid hormone. In humans, a normal kidney contains 800,000 to 1.5 million nephrons.
The nephron is the functional unit of the kidney. Each nephron consists of one renal corpuscle and its associated tubule. The kidney as a whole consists of many nephrons (millions) with their associated blood vessels.