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.
Confidence votes 10.2K. Nephrons are NOT blood vessels in the kidneys. The nephron is a three-stage unit, located in the kidney, responsible for filtering and absorbing substances. There are about one million of these structures per kidney.1  The filter unit is the primary part. 2  Small molecules diffuse into the nephron from the capillaries.onfidence votes 10.2K. Nephrons are NOT blood vessels in the kidneys. The nephron is a three-stage unit, located in the kidney, responsible for filtering and absorbing substances. There are about one million of these structures per kidney.