trigone


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Related to trigone: Hypoglossal trigone, Vagal trigone

trigone

 [tri´gōn]
2. the first three cusps of an upper molar tooth. adj., adj trigo´nal.
trigone of bladder a triangular region of the wall of the urinary bladder, an area in which the muscle fibers are closely adherent to the mucosa; its three angles correspond with the orifices of the ureters and urethra. Called also vesical trigone.
carotid trigone the triangular area bounded by the posterior belly of the digastric muscle, the sternocleidomastoid muscle, and the anterior midline of the neck. Called also superior carotid triangle.
olfactory trigone the triangular area of gray matter between the roots of the olfactory tract.
vesical trigone trigone of bladder.

tri·gone

(trī'gōn), [TA]
1. Synonym(s): trigonum
2. The first three dominant cusps (protocone, paracone, and metacone), taken collectively, of an upper molar tooth.
[L. trigonum, fr. G. trigōnon, triangle]

trigone

/tri·gone/ (tri´gōn)
2. the first three cusps of an upper molar tooth.

trigone of bladder  vesical t.
carotid trigone  the triangular area bounded by the posterior belly of the digastric muscle, the sternocleidomastoid muscle, and the anterior midline of the neck.
olfactory trigone  the triangular area of gray matter between the roots of the olfactory tract.
vesical trigone  the smooth triangular portion of the mucosa at the base of the bladder, bounded behind by the interureteric fold, ending in front in the uvula of the bladder.

trigone

[trī′gōn]
Etymology: Gk, trigonos, three-cornered
1 a triangular space, especially one at the base of the shoulder.
2 the first three dominant cusps, considered collectively, of an upper molar.

tri·gone

(trī'gōn) [TA]
1. Synonym(s): trigonum.
2. The first three dominant cusps (protocone, paracone, and metacone), taken collectively, of an upper molar tooth.
[L. trigonum, fr. G. trigōnon, triangle]

tri·gone

(trī'gōn) [TA]
First three dominant cusps (protocone, paracone, and metacone), taken collectively, of an upper molar tooth.
[L. trigonum, fr. G. trigōnon, triangle]

trigone

1. a triangular area. See also triangle.
2. the primary three cusps of an upper cheek tooth.

olfactory trigone
the triangular area of gray matter between the roots of the olfactory tract.
vesical trigone
a triangular region of the wall of the urinary bladder, the three angles corresponding with the orifices of the ureters and urethra; it is an area in which the muscle fibers are closely adherent to the mucosa.
References in periodicals archive ?
0% but 23 patients with bleeding, septicemia and trigone irritation were managed conservatively so overall success rate was 83.
Four of these tumors were located in the floor of the mouth, 4 in the buccal mucosa, 2 in both the buccal mucosa and retromolar trigone, and 1 in the retromolar trigone only.
The ureters insert into the bladder low in the posterior wall, forming a triangle with the bladder outlet called the trigone.
Few tiny lesions iso-intense to the cortex in the subependymal portion of trigone of both lateral ventricle are also seen, suggestive of subependymal heterotopias.
Obstructing the urinary outflow, around the trigone and proximal portion of the urethra, there was a hemorrhagic and edematous mass, which was impossible to be removed surgically.
This patient presented with chronic retention due to bladder neck obstruction by the diverticulum, which was extending behind the trigone and impinging on the bladder neck.
The most common location is the lip, especially the lower and then the tongue, followed by retromolar trigone and floor of mouth.
Areas of fibrosis were scored 2 for each area--soft palate including uvula, right or left anterior faucial pillar including tonsil, right or left buccal mucosa including gingivobuccal sulcus, right or left retromolar trigone, tongue or floor of mouth.
attorney/author Ellen Brown, Argentina's Marie Trigone, Bruce Anderson (of the Anderson Valley Advertiser), Devinder Sharma (of India), Ronnie Cummins (Executive Director for Organic Consumers Association), David Yearsley, organic farmer Dr.
Involvement of the trigone and ureteric orifices is typical, the latter giving rise to ureteric obstruction and obstructive uropathy.
The retromolar trigone and hard palate were each involved in 4 cases (16%), and gingiva and tongue were each involved in 5 patients (20%).
In most cases, oral metastases involve maxilla and mandible rather than soft tissues, and according to Lim et al the most frequently metastasized site in jawbones was the molar area of the mandible, followed by the ramus, mandibular angle, retromolar trigone and condyle.