Noun
any of the small tubules that are the excretory units of the vertebrate kidney
Source: WordNetAbout 99% of this filtrate is reabsorbed as it passes through the nephron and the remaining 1% becomes urine. Source: Internet
ADH causes a reabsorption of water from the lumen of the nephron to the extracellular fluid osmotically. Source: Internet
Over time the BUN:Cr will decrease due to tubule epithelial damage. citation The increased nephron tubular pressure causes increased reabsorption of urea, elevating it abnormally relative to creatinine. Source: Internet
The latter feature is due to the presence of elongated loops of Henle ; these are much shorter in birds, and not truly present in other vertebrates (although the nephron often has a short intermediate segment between the convoluted tubules). Source: Internet
The second common type of DI is nephrogenic diabetes insipidus (NDI), which is due to kidney or nephron dysfunction caused by an insensitivity of the kidneys or nephrons to ADH. Source: Internet