Countercurrent exchange
Countercurrent exchange Countercurrent exchange is a mechanism used to transfer some ... concentration of a chemical substance, or others. Countercurrent exchange is used extensively in biological ...
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Image:Countercurrent exchange.png
Image:Countercurrent exchange.png Image File history File links Countercurrent_exchange.png Diagram of a generic countercurrent exchange system This image has been (or is ...
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Collecting duct system
Collecting duct system The collecting duct system of the kidney consists of a series ... are several components of the collecting duct system, including the connecting tubules, cortical collecting ducts ... medullary collecting ducts. Function The collecting duct system is the last component of the kidney ... electrolyte and fluid balance. In humans, the system accounts for 4-5% of the ...
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Vertebrates   (translated from Russian)
... morphological organization and with the physiology. Nervous system vertebrates it is considerably more differentiated, than ... the highest vertebrates and its crushing. General exchange of substances in vertebrates incomparably is higher ... causes rapid blood flow; in the secretory system the kidney they reliably ensure removal from ... the organism of the increased quantity of exchange products. The features of high vital organization ... The skins of the vertebrates Skins are system very important in functional sense. The ...
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Thermal regularization   (translated from German)
... on operating temperature. They possess a mechanism ( Countercurrent principle ), prevents, that the produced warmth in ... all kinds of measures: Blood circulation change, Countercurrent principle, Fat deposits, isolating skin. Why thermal ... To the rule-theoretical technical terms see System#Temperatur regularization . Against undercooling One Undercooling and ... different kinds. Without participation of the Nervous system takes place the reaction that smooth musculature ... an interesting relationship between hormone and nervous system). The fat from the brown fatty ...
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Liquid-liquid extraction
... non aqueous systems, for instance in a system consisting of a molten metal in contact ... in the aqueous phase. Depending on the system the distribution ratio can be a function ... the concentration of chemical species in the system and a large number of other parameters ... how much solute is extracted. When the system has been brought to equilbrium the the ... a measure of the ability of the system to separate two solutes. For insatnce ...
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Nephron
... life and are regulated by the endocrine system by hormones such as antidiuretic hormone, aldosterone ... to water, a critical feature of the countercurrent exchange mechanism employed by the loop. The ascending ... filtrate, generating the hypertonic interstitium that drives countercurrent exchange. In passing through the ascending limb, ...
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Chromatography
... the sample. When components pass through the system at different rates they become separated in ... a characteristic time of passage through the system, called a "retention time." Chromatographic separation is ... which a substance moves in a chromatographic system. In continuous development systems like HPLC or ... Synge. The plate theory describes the chromotography system, the mobile and stationary phases, as being ... but poor for thermally labile molecules. Ion exchange chromatography Ion exchange chromatography is a ...
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Heat exchanger
... it can transfer the most heat. See countercurrent exchange. In a cross-flow heat exchanger, the ... pass heat from the primary (reactor plant) system to the secondary (steam plant) system, producing steam from water in the process ... Air conditioning systems and refrigerators use heat exchange in their condensers to cool refrigerant ...
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Glomerulus (kidney)
... kidney. Latin ' Gray's subject #253 1221 System MeSH A05.810.453.324.359 A ... in the establishment of the nephron's countercurrent exchange system. Juxtaglomerular cells The walls of the afferent ... a major role in the renin-angiotensin system, which helps regulate blood volume and ...
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