Question

What processes take place during the period when the blood enters the kidneys till the urine leaves the body?

Answer 1

Kidneys consist of filtering units known as nephrons. As the blood passes through them, they filter out the excess water, salts and urea from it. These wastes form a liquid called urine. The urine passes from the kidneys and enters ureters, from where it passes to the urinary bladder. It is stored in the urinary bladder until it leaves the body through the urethra.