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  2. Ureter - Wikipedia

    en.wikipedia.org/wiki/Ureter

    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 ...

  3. Urinary system - Wikipedia

    en.wikipedia.org/wiki/Urinary_system

    This is an accepted version of this page This is the latest accepted revision, reviewed on 5 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 ...

  4. Reference ranges for urine tests - Wikipedia

    en.wikipedia.org/wiki/Reference_ranges_for_urine...

    Measurement Lower limit Upper limit Unit Urinary specific gravity: 1.003 [1] [2]: 1.030 [1] [2]: g/mL Urobilinogen: 0.2 [2]: 1.0 [2]: Ehrlich units or mg/dL : Free catecholamines, dopamine ...

  5. Bladder - Wikipedia

    en.wikipedia.org/wiki/Bladder

    In placental mammals, urine enters the bladder via the ureters and exits via the urethra during urination. [ 1 ] [ 2 ] In humans, the bladder is a distensible organ that sits on the pelvic floor . The typical adult human bladder will hold between 300 and 500 ml (10 and 17 fl oz ) before the urge to empty occurs, but can hold considerably more.

  6. Mammalian kidney - Wikipedia

    en.wikipedia.org/wiki/Mammalian_kidney

    Normal physiological stimulation of the efferent sympathetic nerves of the kidney is involved in maintaining the balance of water and sodium in the body. Activation of the efferent sympathetic nerves of the kidney reduces its blood flow , and respectively, filtration and excretion of sodium in the urine, and also increases the rate of renin ...

  7. Kidney - Wikipedia

    en.wikipedia.org/wiki/Kidney

    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 ...

  8. Facet cell - Wikipedia

    en.wikipedia.org/wiki/Facet_cell

    Urine osmolarity can range from 50 to 1200 mmol/L while the normal body osmolarity is 290 mmol/L. The difference between the two could lead to fluid entering or exiting the ureter due to the osmotic pressure. [2] Umbrella cells contain uroplakin ia, uroplakin ib, uroplakin ii, and uroplakin iii. [3] These increase the strength of the urothelium ...

  9. Urinalysis - Wikipedia

    en.wikipedia.org/wiki/Urinalysis

    The interpretation of urinalysis takes into account the results of physical, chemical and microscopic examination and the person's overall condition. Urine test results should always be interpreted using the reference range provided by the laboratory that performed the test, or using information provided by the test strip/device manufacturer. [136]