describe the structure and functioning of nephrons. kindly answer this question in long, plz.
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Answer:
Nephrons are structural and functional units of kidneys. They are long, colied tubular structures. Each nephron shows the following parts - Malpighian body, proximal convoluted tubule, loop of Henle, distal convoluted tubule and collecting duct. The Malpighian body shows a cup-shaped Bowman's capsule, in which is present a tuft of capillaries called glomerulus.
Nephrons are the basic filtration units in kidneys. They filter the blood and form and concentrate urine. Useful substances are reabsorbed by the nephrons and put back into circulation.
Answered by | 29th Jun, 2008, 06:42: AM
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Answer:it is easy nothing to read simply observe.the functional unit of kidney is nephrons is the most important part like alveoli in the lungs when the water enters to the afferent arteriole it comes out through efferent one.then the structure nephrons are made up mainly 5parts bowmans capsule ,PCT ,HENLES LOOP , and DCT, collecting duct
Explanation: now when the water enters to the afferent arteriole it cocentrates the water and produce urine thus called conc.urine mammals we are specially desinge dto produce conc.urine first aGfr is formed means globular filtrate rate then further H+ ions and other K+ ions are secreted in the dct to maintain the osmaolarity. Then the ascending henles loop is permeable to the water and descending is permeable to the h+ ions means minerals but not water finally all water and excess minerals are drained it reaches the collecting duct .thus produces a conc. Urine....