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It is classically described that there are three sites in the ureter where a kidney stone will commonly become stuck: where the ureter meets the renal pelvis; where the iliac blood vessels cross the ureters; and where the ureters enter the urinary bladder, [9] however a retrospective case study, which is a primary source, of where stones lodged ...
Histology at KUMC urinary-renal16 "ureter" www.urothelium.com is an online resource for information about Human Urothelium and the "Biomimetic Urothelium" Archived 2011-02-01 at the Wayback Machine; Urothelium at the U.S. National Library of Medicine Medical Subject Headings (MeSH) Histology at qmul.ac.uk Archived 2011-07-21 at the Wayback Machine
This is an accepted version of this page This is the latest accepted revision, reviewed on 25 February 2025. This article is about the human urinary system. For urinary systems of other vertebrates, see Urinary systems of birds, urinary systems of reptiles, and urinary systems of amphibians. Anatomical system consisting of the kidneys, ureters, urinary bladder, and the urethra Urinary system 1 ...
This becomes the ureter. At the hilum, the ureter and renal vein exit the kidney and the renal artery enters. Hilar fat and lymphatic tissue with lymph nodes surround these structures. The hilar fat is contiguous with a fat-filled cavity called the renal sinus. The renal sinus collectively contains the renal pelvis and calyces and separates ...
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).
The metanephros develops from the ureteric bud, which is an outgrowth on the caudal part of the nephric duct, [170] [171] and the metanephrogenic blastema, which is part of the intermediate mesoderm surrounding the ureteral bud. [172] [173] The development of metanephros begins with the induction of a metanephrogenic blastema by the ureteric bud.
The renal calyces (sg. calyx) are conduits in the kidney through which urine passes. The minor calyces form a cup-shaped drain around the apex of the renal pyramids.Urine formed in the kidney passes through a renal papilla at the apex into the minor calyx; four or five minor calyces converge to form a major calyx through which urine passes into the renal pelvis (which in turn drains urine out ...
The renal columns, Bertin columns, or columns of Bertin, a.k.a. columns of Bertini are extensions of the renal cortex in between the renal pyramids.They allow the cortex to be better anchored.