Question

After the age of 40 years the number of functioning nephrons usually decreases how much in
every 10 years

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Answer 1

Answer:

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Answer 2

Answer:

^From young adulthood (18–29 years) to old age (70–75 years), healthy adults lose almost half of their nephrons, not the 15% loss inferred from glomerulosclerosis or cortical volume loss. Loss of nephrons is proportionally consistent with the decline in GFR with aging.

^But wait a minute. Kidney function declines with age in almost everyone, and the proportion of older people with G.F.R. readings below 60 approaches 50 percent, studies have found. As the older adult population grows, the prevalence may rise even higher

^Most kidney diseases attack the nephrons, causing them to lose their filtering capacity. Damage to the nephrons may happen quickly, often as the result of injury or poisoning. But most kidney diseases destroy the nephrons slowly and silently. Only after years or even decades will the damage become apparent.

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