Also called statute mile. a unit of distance on land in English-speaking countries equal to 5280 feet, or 1760 yards (1.609 kilometers).
Urine formation begins in the renal corpuscle, where blood passing through the glomerulus is filtered. Filtrates include water, ions, and other solutes, which are filtered out of the blood and into the capsular space to begin urine formation. Urine passes into the proximal convoluted tubule, then into the nephron loop.The nephron concentrates urine by the process of the countercurrent multiplication system.iltrates include water, ions, and other solutes, which are filtered out of the blood and into the capsular space to begin urine formation. Urine passes into the proximal convoluted tubule, then into the nephron loop. The nephron concentrates urine by the process of the countercurrent multiplication system.
Introduction. Three separate processes contribute to the formation of urine within the nephron of the kidney. These are filtration, reabsorption and secretion. We shall be considering the first of these, filtration. Filtration occurs in the glomerulus of the nephrons. The glomeruli are capillary beds within the nephrons, and filtration of fluid out of the glomerulus occurs both as a result of the structure of the nephron, and of Starlings forces.