Kidney
For other uses, see Kidney (disambiguation). Kidneys Posterior view of kidneys and their external vasculature, with adjacent posterior structures labelled. Left: location of kidneys within the body. Right: gross anatomical structures within the kidney (midsagittal cut, left kidney). Details System Urinary system and endocrine system Artery Renal artery Vein Renal vein Nerve Renal plexus Identifiers Latin Ren Greek Nephros MeSH D007668 TA A08.1.01.001 FMA 7203 Anatomical terminology [edit on Wikidata] 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 11 centimetres (4.3 in) 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 ki