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En [[anatomía]] humana, os '''uréteres''' son os tubos que conducen a [[urina]] desde os [[ril]]es á [[vexiga urinaria]]. Teñen moitas fibras de [[músculo liso]] e unha lonxitude no adulto duns 30 cm e ~3-4 mm de diámetro.
Nos humanos os uréteres nacen na pelve renal na zona medial de cada ril e descenden cara a vexiga apoiándose no músculo [[psoas maior]]. A primeira porción é abdominal e cando chega preto da bifurcación das arterias ilíacas, que cruza pola parte anterior, pasa á rexión pélvica. Os uréteres discorren posteroinferiormente polas paredes laterais da pelve e cúrvanse cara adiante para entrar na vexiga pola súa parte posterior, na unión vesicouretérica, seguindo a parede da vexiga durante algúns cm. O fluído retrógrado da urina impídese pola existencia dunhas válvulas chamadas válvulas ureterovesicais.
In humans, the ureters arise from the [[renal pelvis]] on the medial aspect of each kidney before descending towards the bladder on the front of the [[psoas major]] muscle. The ureters cross the [[pelvic brim]] near the bifurcation of the iliac arteries (which they cross anteriorly). This is a common site for the impaction of [[kidney stones]] (the others being the ureterovesical valve, where the ureter meets the bladder, and the pelvouteric junction, where the renal pelvis meets the ureter in the renal hilum). The ureters run posteroinferiorly on the lateral walls of the pelvis and then curve anteriormedially to enter the bladder through the back, at the vesicoureteric junction, running within the wall of the bladder for a few centimetres. The backflow of urine is prevented by valves known as ureterovesical valves.
Nas mulleres, os uréteres pasan a través do [[mesometrio]] e baixo as arterias uterinas no seu camiño á vexiga urinaria.
In females, the ureters pass through the [[mesometrium]] and under the uterine arteries on the way to the [[urinary bladder]]. An effective phrase for remembering this anatomical relationship is "water (ureters) under the bridge (uterine arteries or [[vas deferens]])."
UretersOs areuréteres alsotamén foundse inencontran allnoutras otherespecies de animais [[amnioteamniota]] speciess, althoughpero different ducts fulfill the same role innos [[amphibiananfibio]]s ande [[fishpeixe]]s hai outros condutos que desenvolven o mesmo labor. <ref name=VB>{{cite book |author=Romer, Alfred Sherwood|author2=Parsons, Thomas S.|year=1977 |title=The Vertebrate Body |publisher=Holt-Saunders International |location= Philadelphia, PA|page= 378|isbn= 0-03-910284-X}}</ref>
{{Infobox Anatomy
| Name = Ureter (Anatomical View)
| Latin =
| GraySubject
| GrayPage = 1225
| Image = Urinary tract la.png
| Caption2 =
| Precursor = [[Ureteric bud]]
| System =
| Artery = [[Superior vesical artery]], [[Vaginal artery]], [[Ureteral branches of renal artery]]
| Vein =
| Nerve =
| Lymph =
| MeshName = Ureter
| MeshNumber = A05.810.776
| Dorlands = eight/000113286
| DorlandsID = Ureter
}}
==Enfermidades==
O [[cáncer ureteral]] é un tumor propio destes condutos.
[[Cancer]] of the ureters is known as [[ureteral cancer]].
AOs [[kidneycálculo stonerenal|cálculos renais]] canpoden movedesprazarse from the [[kidney]]desde andos becomeriles lodgede insidealoxarse thenos ureteruréteres, whichbloqueando cano blockfluxo thede flow of [[urine]]urina, aso wellque ascausa causeun aforte sharpcólico [[cramp]]nas incostas, thelaterais back,e side,parte orinferior lowerdo [[abdomen]]abdome. <ref>{{cite web|url=http://www.medicalbug.com/symptoms-of-kidney-stones/|title=Symptoms of Kidney Stones|date=1 January 2012|publisher=MedicalBug|accessdate=11 April 2012}}</ref> TheO affectedril kidneyafectado couldpode thendespois developdesenvolver [[hydronephrosishidronefrose]], shoulde ainchar partdebido ofao thebloqueo kidneydo becomefluxo [[Swellingde (medical)|swollen]]urina. due to blocked flow of urine.<ref>{{cite web|url=http://www.netwellness.org/healthtopics/kidney/kidneystones.cfm|title=Kidney Stones|last=Resnick|first=Martin I|coauthors=Lam, Mildred; Zipp, Thomas|date=4 September 2009|publisher=NetWellness|accessdate=11 April 2012}}</ref>
Hai tres zonas do uréter onde xeralmente os cálculos renais quedan aloxados:
There are three sites where a kidney stone will commonly become stuck:
* A unión uretérica na pelve renal (onde o uréter se une á pelve renal).
* at the ureteric junction of renal pelvis;
* A zona onde o uréter pasa sobre as arterias ilíacas para entrar na pelve.
* as the ureter passes over the iliac vessels;
* A zona onde o uréter se une á vexiga (unión vesicouretérica).
* where the ureter enters into the urinary bladder (vesicoureteric junction).
==Clinical==
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