Definitions for urinary bladder

This page provides all possible meanings and translations of the word urinary bladder

Random House Webster's College Dictionary

u′rinary blad′der(n.)

  1. a distensible, muscular sac in most vertebrates, in which urine is retained until discharged from the body.

    Category: Anatomy, Zoology

    Ref: Also called bladder. 1 2

Origin of urinary bladder:


Princeton's WordNet

  1. urinary bladder(noun)

    a membranous sac for temporary retention of urine


  1. urinary bladder(Noun)

    An elastic, muscular sac situated in the pelvic cavity, into which urine from the kidneys is stored prior to disposal by urination. Urine enters the bladder via the ureters and exits via the urethra.


  1. Urinary bladder

    The urinary bladder is the organ that collects urine excreted by the kidneys before disposal by urination. A hollow muscular, and distensible organ, the bladder sits on the pelvic floor. Urine enters the bladder via the ureters and exits via the urethra. Bladders occur throughout much of the animal kingdom, but are very diverse in form and in some cases are not homologous with the urinary bladder in humans. The human urinary bladder is derived in embryo from the urogenital sinus and, it is initially continuous with the allantois. In males, the base of the bladder lies between the rectum and the pubic symphysis. It is superior to the prostate, and separated from the rectum by the rectovesical excavation. In females, the bladder sits inferior to the uterus and anterior to the vagina; thus, its maximum capacity is lower than in males. It is separated from the uterus by the vesicouterine excavation. In infants and young children, the urinary bladder is in the abdomen even when empty.

U.S. National Library of Medicine

  1. Urinary Bladder

    A musculomembranous sac along the URINARY TRACT. URINE flows from the KIDNEYS into the bladder via the ureters (URETER), and is held there until URINATION.


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