Nuclear Medicine Dictionary Nuclear Medicine : Nomenclature Guide
  • Ultrasonography: A test in which sound waves are bounced off body tissue, and the echos are converted into a picture, for the purpose of medical examination or diagnosis, that are viewed on a monitor.
  • Ultrasound: Also referred to as a sonogram. A technique that bounces painless sound waves off organs to create an image of their structure to detect abnormalities.
  • Umbilicus: Navel or belly button.
  • Ureter: One of two tubes that carry urine from the kidneys to the bladder.
  • Ureteral: Pertaining to the ureter. Also referred to as ureteric.
  • Ureters: Tubes that carry urine from the kidneys to the bladder.
  • Urethra: In males, this narrow tube carries urine from the bladder to the outside of the body and also serves as the channel through which semen is ejaculated. Extends from the bladder to the tip of the penis. In females, this short, narrow tube carries urine from the bladder to the outside of the body.
  • Urethral: Relating to the urethra, the tube tha carries urine from the bladder to outside the body.
  • Urethral diverticulum: A sac-like or tubular growth caused by a weakened area in the urethra.
  • Urethral stricture: Scarring of tissue that causes narrowing or blockage of the canal leading from the bladder, discharging the urine externally.
  • Urinary incontinence: Involuntary loss of urine associated with a sudden strong urge to urinate. Inability to control urination.
  • Urinary tract: The system that takes wastes from the blood and carries them out of the body in the form of urine. Passageway from the kidneys to the ureters, bladder and urethra.
  • Urinary tract infection: Also referred to as UTI. An illness caused by harmful bacteria, viruses or yeast growing in the urinary tract.
  • Urinate: To release urine from the bladder to the outside. Also referred to as void.
  • Urine: Liquid waste product filtered from the blood by the kidneys, stored in the bladder and expelled from the body through the urethra by the act of urinating (voiding). About 96 percent of which is water and the rest waste products.
  • Urologist: A doctor who specializes in diseases of the male and female urinary systems and the male reproductive system.
  • Urology: Branch of medicine concerned with the urinary tract in males and females and with the genital tract and reproductive system of males.
  • Uterus: A hallow, muscular organ in the pelvis cavity of females in which the embryo is nourished and develops before birth.
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