The kidneys are a pair of very hard-working filters. They purify the blood, taking out waste substances and making sure that useful substances are kept in. The kidneys produce urine, a fluid that contains waste substances filtered from the blood. Urine is passed to the bladder, where it is stored until it leaves the body through a tube called the urethra.
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RISHI
The kidneys are a pair of very hard-working filters. They purify the blood, taking out waste substances and making sure that useful substances are kept in. The kidneys produce urine, a fluid that contains waste substances filtered from the blood. Urine is passed to the bladder, where it is stored until it leaves the body through a tube called the urethra.