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.
While filtering, the kidneys produce urine to carry the toxins away. The urine is sent through two tubes called ureters down to the bladder, where the urine then leaves the body through the urethra. The kidneys also make hormones. These hormones help regulate blood pressure, make red blood cells and promote bone health.
Normal kidneys and kidney function. 1  The kidneys are a pair of bean-shaped organs that lie on either side of the spine in the lower middle of the back.  Each kidney weighs about 5 ounces and contains approximately one million filtering units called nephrons.