Marie Curie. Marie Curie was a physicist and chemist best known for her work on radioactivity; however, she also discovered the elements polonium and radium.
The kidney secretes the hormones renin, calcitriol and erythropoietin. Renin-also known as angiotensinogenase, helps to control the body's blood pressure by regulating the â¦ balance of fluid and electrolytes in the body. Calcitriol-This is a form of Vitamin D which regulates calcium and phosphorous levels in the body.
Made up of endocrine glands which secrete hormones directly into the blood, then the hormones are transported by the circulatory system to the organs and tissues in which they act. located at the top of each kidney. outer layer is called the cortex and the inner layer is the medulla.