List the components of the urinary tract from the renal pelvis outward. Why would water facilitate the passage of kidney stones? Why would water aid in the prevention of developing

future kidney stones? List the three stages in the formation of urine and describe each stage with regard to the structures involved and the direction substance transport. The glomerular filtrate concentration of calcium (Ca+2) is about 4 mEq/L. The concentration of calcium in the urine is about 5 mEq/L. How would you explain this difference?