Terminology Service for NFDI4Health
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trigone of urinary bladder

Go to external page http://purl.obolibrary.org/obo/UBERON_0001257

the smooth triangular region of the wall of the urinary bladder formed by the two ureteral orifices and the internal urethral orifice; it is an area in which the muscle fibers are closely adherent to the mucosa [ http://www.informatics.jax.org/accession/anna ]

Term info

Label

trigone of urinary bladder

Synonyms
  • Lieutaud's trigone
  • bladder trigone
  • deep trigone
  • musculus trigoni vesicae profundus
  • trigone of bladder
  • trigonum vesicae
  • urinary bladder trigone
  • vesical trigone
database cross reference
Subsets

uberon_slim, pheno_slim

latin term
trigonum vesicae [ FMA : TA FMA : 15910 ]

latin term
musculus trigoni vesicae profundus [ FMA : TA FMA : 15910 ]

depicted by

http://purl.obolibrary.org/obo/Illu_bladder.jpg

development notes

Embryologically, the trigone of the bladder is derived from the caudal end of mesonephric ducts, which is of mesodermal origin (the rest of the bladder is endodermal). In the female the mesonephric ducts regresses, causing the trigone to be less prominent, but still present

function notes

The area is very sensitive to expansion and once stretched to a certain degree, the urinary bladder signals the brain of its need to empty. The signals become stronger as the bladder continues to fill.

has related synonym

dorsal bladder neck, trigonum vesicae urinariae

id

UBERON:0001257