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.
One of the most fundamental functions of the kidneys is to extract and eliminate nitrogenous wastes from the body and to regulate the volume and composition of the body's fluids. The other organs within this organ system are mainly responsible for getting rid of the wastes substances from the body. This sub-system is referred to as the urinary tract and comprises the ureters, the urinary bladder and the urethra.