Kidney, nephron, homeostasis, urine formation, loop of henle. The majority of the loops, whose glomeruli lie in the outer part of the cortex, are relatively short, but those with more deeply situated glomeruli have longer loops up to 14 mm, which extend down into the medullary pyramids. Check out the best 3d animation software for 2d, 3d, and stopmotion. The loop of henle is a hairpinlike structure comprised of a thin descending limb, a thin ascending limb and a thick ascending limb. The loop is an important part of the whole system, as it. Loop of henle definition of loop of henle by the free. The loop of henle is a section of nephron tubules of the kidneys located between the proximal and distal convoluted tubules for the function of absorbing water and controlling solute concentration. The thick ascending limb of the henle loop is lined by low cuboidal cells without a brush border. In the kidney, the loop of henle is the portion of a nephron that leads from the proximal convoluted tubule to the distal convoluted tubule. A concise lesson presentation 18 slides that looks at the loop of henle within the kidney and enables students to understand how water is reabsorbed from this structure of the nephron. Ta the ushaped part of the nephron extending from the proximal to the distal tubules. The two dont know what to make of each other, and when facing a difficult obstacle on the way they discover that ones weakness can be anothers strength. The lesson begins by ensuring that students know the terminology associated with this topic and that there are two limbs descending and ascending.
Loop of henle ds synonyms, loop of henle ds antonyms. A ushaped segment of the nephron in a vertebrate kidney that functions in water resorption. It aims to show the creation process to the audience as well as the result of the creation. A very detailed animation showing the working of the kidney and the nephron and the mechanism of action of various diuretics. As the renal community is embracing proteomic technologies at an increasing rate to identify, quantify and characterize a global set of proteins then there is a need to provide a high quality informationrich functional dataset that can be utilized by them to rapidly evaluate new data and generate. Named after its discoverer, the german anatomist friedrich gustav jakob henle, the loop of henles main function is to create a concentration gradient in the medulla of the kidney. Loop of henle national library of medicine pubmed health. The loop of henle encompasses the thin descending limb, the thin ascending limb, and the tal. Cranial nerves made easy a detailed explanation of how the loop of henle helps to concentrate urine.
Solute and water flows in thin limbs of henle s loop in the hamster kidney. The ascending limb drains urine into the distal convoluted tubule. This happens to be a juxtamedullary nephron because of its long loop of henle and the fact that it. Henle loop definition of henle loop by medical dictionary. Mar 31, 2014 loop of henle animation the filtrate is passed through the proximal tubule loop of henle and. This part of the renal tubule is divided into a thin and thick ascending limb. The principal function of the loop of henle appears to be the recovery of water and sodium chloride from the urine. This portion of the tubule ascends for a short distance, when it again becomes dilated, irregular, and angular.
Use it for animation, environments, motion graphics, virtual reality, and character creation. Incomplete loop of henle in birds student doctor network. The loop of henle extends from the cortex into the medulla. This is a quiz called loop of henle with nephron and was created by member gingerrsnapp. It is a long 8 minute 47 second animation showing the molecular mechanism of the working of the nephron and the drugs which act on the various different regions of the nephron. Ion transport along the nephron is essential for the reabsorption of sodium and water, maintenance of plasma volume and blood pressure and production of urine. Its primary function uses a countercurrent mechanism in the medulla to reabsorb water and ions from the urine. Henle and the loops is a collection of lost souls who were looking for make the world a better place and provide a more meaningful life for themselves and those they love.
There is a printable worksheet available for download here so you can take the quiz with pen and paper this quiz has tags. Loop of henle article about loop of henle by the free. Within the nephron of the kidney, the descending limb of loop of henle is the portion of the renal tubule constituting the first part of the loop of henle. As the renal community is embracing proteomic technologies at an increasing rate to identify, quantify and characterize a global set of proteins then there is a need to provide a high quality informationrich functional dataset that can be utilized by them to rapidly evaluate new data. Henles loops article about henles loops by the free. When there is excess water in the body, the excess fluid passes through the loop of henle because the fluid entering the loop is less concentrated already. While, under low dose of cadmium chloride, mild to moderate changes in hepatocytes around blood vessels in liver, reduction in thickness of epithelium and muscular layer in gizzard. Descending limb of loop of henle scheme of renal tubule and its vascular supply. Play this quiz called loop of henle with nephron and show off your skills. This contributes to allowing the kidneys to produce dilute urine. A detailed explanation of how the loop of henle helps to concentrate urine using the countercurrent multiplication mechanism. The loop of henle is a part of a nephron, a tiny tube inside the kidneys that filters solutes. In the kidney, it is the portion of a nephron that leads from the proximal convoluted tubule to the distal convoluted tubule.
As the vessel enters the hypertonic interstitium, solutes enter the blood vessel and water leaves so that plasma becomes more and more hypertonic. Solute reabsorption from these segments reduces the osmolality of the tubular fluid and can lead to fluid entering the cortical collecting duct with an osmolality as low as 50100 mosmkg. Kidney loop of henle go cocuration project go wiki. Feb 27, 2019 the human kidney is made up of about a million nephrons, the filtering units of this complex and highly vascular organ. Loop of henle definition is the ushaped part of the nephron of birds and mammals that lies between and is continuous with the proximal and distal convoluted tubules and that functions in water resorption. The loop of henle is found between the proximal convoluted tubule and the distal convoluted tubule in the nephron. Click on the tags below to find other quizzes on the same subject. The solutes only have so much osmotic potential and therefore are unable to draw the excess water from the lumen. Past the pct is the loop of henle which consists of both ascending and descending limbs. Reabsorption and secretion along the loop of henle anatomy.
Shortlooped nephrons that originate from superficial and midcortical nephrons have a short descending limb within the inner stripe of the outer medulla. Also, the medullary interstitium is highly concentrated because of the activity of the ascending limb, leading to a strong osmotic gradient from the descending limb to the medulla because of these factors, the concentration of the urine increases dramatically in the descending limb. Loop diuretics loop diuretics are diuretics that act at the ascending loop of henle in the kidney, resulting in increased urine production. The science of biology, ninth edition, published by sinauer associates. In the kidney, the loop of henle is the portion of the nephron that leads from the proximal convoluted tubule to the distal convoluted tubule. Named after its discoverer, the german anatomist friedrich gustav jakob henle, the loop of henles main function is to create a. The loop of henle is found in the medulla of the kidney. Loop of henle and distal nephron flashcards quizlet. Jul 05, 2012 when there is excess water in the body, the excess fluid passes through the loop of henle because the fluid entering the loop is less concentrated already. Frame by frame animations are made by adding frames one by one to a clip made of many frames. Osmolality can reach up to 1400 mosmolkg by the end of the descending limb. Each nephron is composed of a highly coiled tubule, one end of which forms a.
Ion transport is different in each of these segments. Within the nephron of the kidney, the ascending limb of the loop of henle is a segment of the heterogenous loop of henle downstream of the descending limb, after the sharp bend of the loop. Apr 12, 2020 the loop of henle is a part of a nephron, a tiny tube inside the kidneys that filters solutes. Normal renal function hebrew university of jerusalem. The distal tubule of the kidney has three parts schematic figure of the nephron. The ascending limb of the loop of henle is a direct continuation from the descending limb of loop of henle, and one of the structures in the nephron of the kidney. The loop of henle, however, is incompletely developed or absent in many nephrons of the bird kidney sperber, i960, and although many species appear able to produce a hypertonic urine the concentrating capacity of the kidney is considerably less than that of the mammal. Loop of henle interactive biology, with leslie samuel. Henles loop the ushaped part of the nephron extending from the proximal to the distal convoluted tubule. By means of a countercurrent multiplier system, which uses electrolyte pumps, the loop of henle creates an area of high urea concentration deep in the medulla, near the papillary. The loop of henle has a hairpin configuration with a thin descending limb and both a thin and thick ascending limb. An innocent little cube tries to make its way through the world, when it meets an energetic young bouncing ball on its way. There are actually two types of nephron in the kidney cortical and juxtamedullary. Henles loop definition of henles loop by medical dictionary.
Loop of henle definition of loop of henle by merriamwebster. Full article loop diuretics are diuretics that act on the ascending loop of henle in the kidney. The loop of henle establishes medullary hyperosmolarity the ascending limb of the loop of henle transports solutes nacl out of the tubule lumen with little or no water, generating an hyperosmotic medullary interstitium and delivering an hyposmotic tubule fluid to the distal tubule. Loop of henle, long, ushaped portion of the tubule that conducts urine within each nephron q. Through the countercurrent multiplier effect, a hypertonic medulla is created allowing reabsorption of water from the collecting duct and the descending limb via osmosis.
The loop of henle is a section of the nephron that leads from the proximal convoluted tubule to the distal convoluted tubule in the kidney. The loop of henle is supplied by blood in a series of straight capillaries descending from the cortical efferent arterioles. Jul 03, 2014 a detailed explanation of how the loop of henle helps to concentrate urine using the countercurrent multiplication mechanism. Kidney function counter current mechanism animation youtube. The kangaroo rat is a desert mammal that conserves water by producing highly concentrated urine urine very low in water. Henles loop definition and meaning collins english dictionary. The ascending limb of the loop of henle, the distal tubule and the connecting duct are always impermeable to water. Henle, the loop of henles main function is to create a concentration gradient in the medulla of the kidney. Loop of henle animation the filtrate is passed through. Henle and the loops is a funk and soul band formed in 2004 for the purpose of assisting charitable organizations in fundraising efforts. Your work can be viewed in browsers and opened in desktop animation software. Each kidney contains hundreds of thousands of individual nephrons, which pass between the cortex of the kidneys and the medulla, connecting to collecting ducts which route urine to the ureter so that it can be expressed. Its primary function is reabsorption of nacl and water.
You compare the relative lengths of the loops of henle in the kangaroo rat with those from a mouse species native to a temperate area where water is readily available. If you want to do animation professionally, this is the program you should focus on. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Animation 2010 sinauer associates and sumanas, inc. The water channel aqp1 is the predominant pathway by which water is reabsorbed from the descending thin limb of henle s loop in the process of urine concentration chou et al. The vasa recta supplies the medulla and they descend into and then ascend out of the medulla like hairpin loops, parallel to the loop of henle. Apr 28, 2017 a concise lesson presentation 18 slides that looks at the loop of henle within the kidney and enables students to understand how water is reabsorbed from this structure of the nephron. Reabsorption and secretion along the loop of henle. Full text of the life of jacob henle internet archive.
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