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.
1 They secrete parathyroid hormone which regulates calcium levels in the blood. 2  Thymus. 3  Although it is considered an endocrine gland, the thymus gland is the main organ of the lymphatic system. 4  Its primary function is to promote the development of specific white blood cells called T-lymphocytes. Thyroid and Parathyroid Glands. 2  The thyroid is a dual lobed gland located in the neck region. 3  It secretes hormones that control metabolism, growth, heart rate, body temperature, and regulate calcium levels. 4  Hormones secreted by the thyroid include thyroxin, triiodothyronine, and calcitonin.