urinary system

Also known as órganos urinarios, tracto urinario, sistema renal

anatomical system

AI overview

The urinary system is the body's network of organs and tubes that produces, stores, and removes urine, which contains waste products filtered from the blood. It matters because it helps maintain the body's chemical balance and removes harmful waste that the body no longer needs.

AI-generated from the Wikipedia summary — may contain errors.

Research

109,861 papers

2021 update on the urinary tract dilation (UTD) classification system: clarifications, review of the literature, and practical suggestions.ReviewPediatric radiology · 2022Nguyen HT, Phelps A, Coley B et al.DOI: 10.1007/s00247-021-05263-w
Urinary tract infection in pediatrics: an overview.ReviewJornal de pediatria · 2020Simões E Silva AC, Oliveira EA, Mak RHDOI: 10.1016/j.jped.2019.10.006
Urinary tract dilation classification system for predicting surgical management and urinary tract infection in neonates and young infants: a systematic review and meta-analysis.Pediatric radiology · 2024Kim HW, Hwang J, Pai KS et al.DOI: 10.1007/s00247-024-05854-3
Anatomy and physiology of the lower urinary tract.ReviewHandbook of clinical neurology · 2015de Groat WC, Yoshimura NDOI: 10.1016/B978-0-444-63247-0.00005-5
Urinary bladder contraction and relaxation: physiology and pathophysiology.ReviewPhysiological reviews · 2004Andersson KE, Arner ADOI: 10.1152/physrev.00038.2003
[Ultrasound of the urinary system].ReviewSemergen · 2016Segura-Grau A, Herzog R, Díaz-Rodriguez N et al.DOI: 10.1016/j.semerg.2015.03.009
A review of the Paris system for reporting urinary cytology.ReviewCytopathology : official journal of the British Society for Clinical Cytology · 2016VandenBussche CJDOI: 10.1111/cyt.12345
Assessment of the urinary system.ReviewThe Veterinary clinics of North America. Food animal practice · 1992Divers TJDOI: 10.1016/s0749-0720(15)30735-0

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Wikidata facts

Image: Urinary system.svg

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Commons category: Urinary system
NCI Thesaurus ID: C12413

Sources (6)

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Article

The urinary system, also known as the urinary tract or renal system, is a part of the excretory system of vertebrates. In humans and placental mammals, it consists of the kidneys, ureters, bladder, and the urethra. The purpose of the urinary system is to eliminate urine from the body, regulate blood volume and blood pressure, control levels of electrolytes and metabolites, and regulate blood pH. The kidneys have an extensive blood supply via the renal arteries which leave the kidneys via the renal vein. Each kidney consists of functional units called nephrons. Following filtration of blood and further processing, the ureters transport urine from the kidneys into the urinary bladder. The female and male urinary system are very similar, differing only in the length of the urethra, which transports urine from the bladder through the penis or vulva during urination.

Healthy humans normally produce 800–2,000 milliliters (mL) of urine every day. This amount varies according to fluid intake and kidney function.