Search results
Results From The WOW.Com Content Network
The juxtamedullary nephrons comprise only about 15% of the nephrons in the human kidney. [ 1 ] : 24 However, it is this type of nephron which is most often depicted in illustrations of nephrons. In humans, cortical nephrons have their renal corpuscles in the outer two thirds of the cortex, whereas juxtamedullary nephrons have their corpuscles ...
Nephrons, the urine-producing functional structures of the kidney, span the cortex and medulla. The initial filtering portion of a nephron is the renal corpuscle, which is located in the cortex. This is followed by a renal tubule that passes from the cortex deep into the medullary pyramids.
Each nephron is located in both the cortex and the medulla. The most proximal part of the nephron is glomerulus, which is located in the cortex. [28] The nephrons of the mammalian kidneys have loops of Henle, which are the most efficient way to reabsorb water and produce concentrated urine to conserve water in the body. [12]
The renal medulla contains the structures of the nephrons responsible for maintaining the salt and water balance of the blood. These structures include the vasa rectae (both spuria and vera), the venulae rectae, the medullary capillary plexus, the loop of Henle, and the collecting tubule. [ 1 ]
The glomerulus (pl.: glomeruli) is a network of small blood vessels (capillaries) known as a tuft, located at the beginning of a nephron in the kidney. Each of the two kidneys contains about one million nephrons. The tuft is structurally supported by the mesangium (the space between the blood vessels), composed of intraglomerular mesangial cells.
According to the length of the loop of Henle, nephrons are classified into nephrons with a long loop and with a short loop of Henle. [24] Although those two classifications do not coincide. Usually, juxtamedullary nephrons have long loops of Henle, but there are more long-looped nephrons than juxtamedullary nephrons in the kidneys. [71]
The collecting duct system of the kidney consists of a series of tubules and ducts that physically connect nephrons to a minor calyx or directly to the renal pelvis.The collecting duct participates in electrolyte and fluid balance through reabsorption and excretion, processes regulated by the hormones aldosterone and vasopressin (antidiuretic hormone).
In the kidney, the loop of Henle (English: / ˈ h ɛ n l i /) (or Henle's loop, Henle loop, [1] nephron loop [2] or its Latin counterpart ansa nephroni) is the portion of a nephron that leads from the proximal convoluted tubule to the distal convoluted tubule.