| ENR | eosinophilic nonallergic rhinitis; extrathyroid neck radioactivity |
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| FNF | false-negative fraction; femoral neck fracture |
| GG | or S glands, goiter, or stiffness [of neck] |
| HN | head and neck; head nurse; hemagglutinin neuraminidase; hematemesis neonatorum; hemorrhage of newbor... |
| H&N | head and neck |
| urinary reflex | Contraction of the walls of the bladder and relaxation of the trigone and urethral sphincter in response to a rise in pressure within the bladder; the reflex can be voluntarily inhibited and the inhibition readily abolished to control micturition. Synonym: bladder reflex, urinary reflex, vesical reflex. (05 Mar 2000) |
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| urinary reservoirs, continent | Structures which collect and store urine and are emptied by catheterization of a cutaneous stoma or internal diversion to the urethra. The reservoirs are surgically created during procedures for urinary diversion. (12 Dec 1998) |
| urinary retention | The inability to pass urine from the bladder, most often due to an obstruction of flow. In older males, this may be due to prostate enlargement. Urine retention can also occur as a drug side effect (anticholinergics), after surgical procedures and in the presence of a urethral stricture (narrowing of the urethra). (27 Sep 1997) |
| urinary sand | Multiple small calculous particles passed in the urine of patients with nephrolithiasis; each particle is usually too small to cause significant symptoms or to be identified as a true calculus. (05 Mar 2000) |
| urinary schistosomiasis | Infection with Schistosoma haematobium, the eggs of which invade the urinary tract, causing cystitis and haematuria, and possibly an increased likelihood of bladder cancer. Synonym: bladder schistosomiasis, Egyptian haematuria, endemic haematuria, urinary schistosomiasis. (05 Mar 2000) |
| urinary smear | A group of cytologic specimens containing processed urine obtained from bladder, ureters, or renal pelvis; used for cytologic study of cancer and other diseases of the urinary tract. (05 Mar 2000) |
| urinary sphincter, artificial | An artifical implanted device, usually in the form of an inflatable silicone cuff, inserted in or around the bladder neck in the surgical treatment of urinary incontinence caused by sphincter weakness. Often it is placed around the bulbous urethra in adult males. The artificial urinary sphincter is considered an alternative to urinary diversion. (12 Dec 1998) |
| urinary stuttering | Frequent involuntary interruption occurring during the act of urination. Synonym: stammering of the bladder. (05 Mar 2000) |
| urinary system | The organs concerned in the production and excretion of urine, together with the organs of reproduction. (12 Dec 1998) |
| urinary tract | The organs of the body that produce and discharge urine. These include the kidneys, ureters, bladder, and urethra. (12 Dec 1998) |
| urinary tract infection | A bacterial infection of the urethra, bladder, ureters or kidneys (part of the urinary tract). Common symptoms of a urinary tract infection include pain with urination, urinary urgency and increased frequency of urination. Acronym: UTI (15 Nov 1997) |
| urinary tract infections | Infections affecting those structures of the body which participate in the secretion and elimination of urine, i.e., the kidney, the ureters, the urinary bladder, and the urethra. (12 Dec 1998) |
| urinary tract physiology | Functions and activities of the urinary tract as a whole or of any of its parts. (12 Dec 1998) |
| frequency, urinary | Urinating too often, at too frequent intervals, not due to an unusually large volume of urine, but rather to a decrease in the capacity of the bladder to hold urine. (12 Dec 1998) |
| air bladder | 1. <anatomy> An air sac, sometimes double or variously lobed, in the visceral cavity of many fishes. It originates in the same way as the lungs of air-breathing vertebrates, and in the adult may retain a tubular connection with the pharynx or oesophagus. 2. A sac or bladder full of air in an animal or plant; also an air hole in a casting. Source: Websters Dictionary (01 Mar 1998) |