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kidney

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          I nvertebrates, the kidneys are two reddish-brown bean-shaped organs. They are positioned on the left and right sides of the retroperitoneal region and are around 12 centimetres (4+12 inches) long in adults. [1][2] They get blood from the linked renal arteries and get blood from the paired renal veins. Each kidney is connected to a ureter, which is a tube that transports expelled pee to the bladder. he   kidney   controls   the   concentrations   of   different   body   fluids,   fluid   osmolality,   acid-base   balance,   and   toxin   removal.   One-fifth   of   the   blood   volume   entering   the   kidneys   is   filtered   in   the   glomerulus,   where   it   takes   place.   Solute-free   water,   salt,   bicarbonate,   glucose,   and   amino   ac...