urinary bladder

noun

Definition of urinary bladder

:a membranous sac in many vertebrates that serves for the temporary retention of urine and discharges by the urethra

First Known Use of urinary bladder

1728


Medical Dictionary

urinary bladder

noun

medical Definition of urinary bladder

:a distensible membranous sac that serves for the temporary retention of the urine, is situated in the pelvis in front of the rectum, receives the urine from the two ureters and discharges it at intervals into the urethra through an orifice closed by a sphincter, is lined with transitional hypoblastic epithelium, and develops from the proximal part of the allantois of the embryo

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