trigone


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Related to trigone: Hypoglossal trigone, Vagal trigone

trigone

[′trī‚gōn]
(anatomy)
A triangular area inside the bladder limited by the openings of the ureters and urethra.
(botany)
A thickening of plant cell walls formed when three or more cells adjoin.
References in periodicals archive ?
The impingement of the neurovascular bundle in the retromolar trigone from dental removable prosthesis in the elderly due to the resorption of alveolar bone may result in patient discomfort (Langlais et al.
Transection of the corona radiata is performed while opening the lateral ventricle from the frontal horn to the trigone.
However, limited mouth opening was observed in cases where defects of retromolar trigone were repaired.
Finally in our long-term analysis tumors which were located in the bladder neck/ trigone showed worse progression and TSS rate.
Upon cystoscope insertion, the trigone was noted to be elevated.
34] Details not available Case number Sex Site 1 Male Right lateral wall, neck 2 Female Neck 3 Female Neck 4 Female Neck/urethra 5 Female Right ureteric orifice 6 Female Posterior, left lateral wall 7 Not available to author Not available 8 Female Neck 9 Male Left lateral wall, trigone 10 Female Neck 11 Female Trigone 12 Female Posterior wall 13 Female Left ureteric orifice 14 Female Posterior wall, trigone 15 Female Posterior, anterior wall, neck, urethra 16 Male Posterior, anterior wall 17 Female Right lateral wall, neck.
Painful trigone irritation was common and distressing in 13 (13.
The ureteral bud originates from the caudal end of the mesonephric duct at approximately gestational week 4, and proper interaction between the mesonephric duct and urogenital sinus results in the correct anatomical placement of the ureteral orifice on the bladder trigone.
Chest radiograph was normal, but a non-contrast CT scan (Figs 1A and 1B) showed subtle prominence of the choroid plexus in the right trigone, peritrigonal white matter oedema and early hydrocephalus.
The results of this study suggest that (1) the timing of third molar eruption is strongly influenced by the availability of mandibular trigone space, (2) the attrition and shrinkage of the dental arch, probably as the result of non-refined highly fibrous diets, produce larger mandibular trigone spaces, and (3)early eruption of third molars observed may be due to the nature of the diet used and the vigorous employment of the masticatory apparatus (from infancy) by the subjects examined.
These tumors were located in the floor of the mouth in 4 patients, in the buccal mucosa in 4, in both the buccal mucosa and retromolar trigone in 2, and in the retromolar trigone only in 1.