Silk counts to the strongest natural fabric in the world. Known for its softness, luster, beauty and luxurious look, silk fabric is one of the higher grade fabric providing comfort to the wearer in all types of weather. Keeping the body cool in summer and warm in winter, silk was discovered during 2640 B.C. in china.
In this way, your kidneys regulate the body's level of these substances. The right balance is necessary for life, but excess levels can be harmful. In the nephron (left), tiny blood vessels intertwine with urine-collecting tubes. Each kidney contains about 1 million nephrons. In addition to removing wastes, your kidneys release three important hormones: 1  Erythropoietin (eh-RITH-ro-POYeh-tin), or EPO, which stimulates the bones to make red blood cells. 2  Renin (REE-nin), which regulates blood pressure.
The primary function of the kidney is to remove nitrogenous wastes (mainly urea) from the body. This is an extremely important kidney function, since toxic build-up of nitrogenous wastes in the body can lead to life-threatening diseases and eventually death.iltering the blood is the primary function of the kidney. Every day the kidneys process about 200 quarts (190 liters) of blood and filters out about 2 quarts of waste products and extra water.