Kidney Kidney The kidneys are two bean-shaped organs found in vertebrates. They are located on the left and right in the retroperitoneal space, and in adult humans are about in length. They receive blood from the paired renal arteries; blood exits into the paired renal veins. Each kidney is attached to a ureter, a tube that carries excreted urine to the bladder. The nephron is the structural and functional unit of the kidney. Each adult kidney contains around 1 million nephrons. The nephron utilizes four processes to alter the blood plasma which flows to it: filtration, reabsorption, secretion, and excretion. The
Artificial urinary bladder are not subject to transplant rejection, unlike transplants from human or animal donors. The current standard for repairing a damaged urinary bladder involves partial or complete replacement using tissue from the small intestine. Artificial urinary bladder The two main methods for replacing bladder function involve either redirecting urine flow or replacing the bladder "in situ". Replacement can be done with an artificial urinary bladder, an artificial organ. On January 30, 1999, scientists announced that a lab-grown bladder had been successfully transplanted into dogs. These artificial bladders worked well for almost a year in the dogs. In 2000, a new procedure