The water cycle, also known as the hydrologic cycle or the H2O cycle, describes the continuous movement of water on, above and below the surface of the Earth. Although the balance of water on Earth remains fairly constant over time, individual water molecules can come and go, in and out of the atmosphere.
OBJ: Olusegun Obasanjo (president of Nigeria) OBJ: Official Black Jester (website)
What is Ureteropelvic Junction (UPJ) Obstruction? One of the main jobs of the kidney is to filter the blood, and deliver the waste products (urine) to the bladder. The urine leaves the kidney, enters the renal pelvis, and then passes into the ureter through a funnel called the ureteropelvic junction (UPJ). In some children there is a partial blockage at the UPJ. The blockage may be severe (high grade), minimal (low grade) or intermittent.