nephron
enUK![](file://TheFreeDictionary/THnephron.jpg)
neph·ron
N0062350 (nĕf′rŏn)nephron
(ˈnɛfrɒn)neph•ron
(ˈnɛf rɒn)n.
neph·ron
(nĕf′rŏn)nephron
Noun | 1. | ![]() |
单词 | nephron | |||
释义 | nephronenUK![]() neph·ronN0062350 (nĕf′rŏn)nephron(ˈnɛfrɒn)neph•ron(ˈnɛf rɒn)n. neph·ron(nĕf′rŏn)nephron
nephronenUKnephron:see urinary systemurinary system,group of organs of the body concerned with excretion of urine, that is, water and the waste products of metabolism. In humans, the kidneys are two small organs situated near the vertebral column at the small of the back, the left lying somewhat higher than the ..... Click the link for more information. . Nephronthe basic structural and functional unit of the kidneys in vertebrate animals and man. A distinction is made between aglomerular and glomerular nephrons. Aglomerular nephrons are found in certain fishes and contain cells of a single type; glomerular nephrons, found in all other vertebrates and in man, contain the Malpighian bodies and Bowman’s capsules. The renal tubules extend from Bowman’s capsules. The cells of glomerular nephrons are highly specialized to perform the functions required in the formation of urine—filtration, reabsorption, and secretion. In embryos the nephron also includes the nephrostomes, which are the ciliated infundibuli of the tubules. The nephrostomes open into the body cavity. nephron[′nef‚rän]nephronenUKnephron[nef´ron]The nephron is a complex system of arterioles, capillaries, and tubules. Blood is brought to the nephron via the afferent arteriole. As the blood flows through the glomerulus (a network of capillaries), about one-fifth of the plasma is filtered through the glomerular membrane and collects in the malpighian (Bowman's) capsule, which encases the glomerulus. The fluid then passes through the proximal tubule, from there into the loop of Henle, then into the distal tubule, and finally into the collecting tubule. As the fluid is making its tortuous journey through these various tubules, most of its water and some of the solutes are reabsorbed into the blood via the peritubular capillaries. The water and solutes remaining in the tubules become urine. neph·ron(nef'ron),See also: uriniferous tubule. nephron(nĕf′rŏn)nephronThe functional anatomic unit of the kidney, which consists of a glomerulus, convoluted tubules and a loop of Henle (nephron loop)neph·ron(nef'ron)nephronthe MALPIGHIAN BODY and the associated tubule of the vertebrate kidney a structure about 5 cm long in humans. In each human kidney there are about one million nephrons, making a total for both kidneys of around fifty miles of tubules. Inflammation of the tubules is called nephritis.NephronnephronenUK
Synonyms for nephron
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