Proximal convoluted Medullar tubule Arched collecting Pelvis of Py Glomerulus tubule ureter Efferent Distal arteriole convoluted Papilla tubule Lobule Afferent Middle of arteriole medullary rat Interlobular arterv Ascending loop of Henle Collecting glomerulus tubule Macula Distal convoluted Descending loop tubule f Henle Medulla Duct of Bellini