The structure of the kidney : The kidneys are a pair of the organ that is found on the other side of the spine, just below the rib cage in the back.
Kidneys: Filter waste materials out of the blood and pass them out of the body as urine. Regulate blood pressure and the levels of water, salts, and minerals in the body. 1. Renal artery: the renal arteries carry a large portion of total blood flow to the kidneys. AAP to a third of total cardiac output can pass through the renal arteries to be filtered by the kidneys.
2. Renal vein: there are two renal veins, a left, and a right. they branch of the inferior vena cava and drained oxygen-depleted blood from the kidneys.
3. Cortex: the cortex provides a space for anteriorly and venules from the renal artery and vein, as well as the glomerular capillaries, to perfuse the nephrons of the kidney.
4. Medulla: the main function of the medulla is to regulate the concentration of the urine. The urine flows from the collecting ducts into the renal calyces and pelvis, which undergoes uni-directional Peristaltic movements to allow drainage of the urine into the downstream ureter and bladder.
5. Renal pelvis: the kidney pelvis acts as a funnel, collecting the urine produced in the kidney and leading to a central "stem" the curator.
6. Ureter: the urine travels from the kidneys to the bladder into the thin tubes called ureters. The ureters are about 8 to 10 inches long.