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A joint, seam, or closure line where two structures unite.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



in human and animal anatomy, a site of union or junction.

The commisura labiorum oris is the junction of the lips at the corners of the mouth. The anterior commissure of the cerebrum is the transverse bundle of nerve fibers that unites the corpora striata of the forebrain in the majority of vertebrates. The anterior commissure of the mantle, or the commissura fornicis, joins the hemispheres of the forebrain in dipnoans and terrestrial vertebrates—the basis of the corpus callosum in mammals.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The defect that we were handed was enormous with buccal mucosa defect of about 5x5 cm, more than 50% of upper lip was resected and about 90% of the lower lip was excised along with left oral commissure (Figure-1).
On physical examination, a round, approximately 1 x 2-cm, firm mass was found at the right commissure of the beak.
Transverse section of the brain ganglia (CG) stained with Gallego's trichrome A) Low magnification shows the neural tissue surrounded by a connective capsule (arrowhead), the two ganglions joined by a fibrous commissure (CC) and the projection of the anterior pallial nerve (APN).
Supracricoid partial laryngectomy with cricohyoidoepiglottopexy for "early" glottic carcinoma classified as T1-T2N0 invading the anterior commissure. Am J Otolaryngol 1997;18(6):385-90.
The number of subjects with an asymmetry of [greater than or equal to]2.5 mm at rest and while smiling using various landmarks as a reference point; only menton was determined to be statistically significant as the point of reference to evaluate the differences in the distance to the left and right commissure, respectively Resting Smiling Asymmetry Asymmetry Both p (*) Ala 7 5 1 0.5271 Menton 1 12 0 0.0023 Nasion 2 4 1 0.3173 Subnasale 4 11 1 0.0522 Overall 11 23 3 0.0233 (*) p from the McNemar's chi-squared test of agreement between the resting and smiling asymmetry Table 2.
In the cold steel group, both recurrences were at the anterior commissure that extends to the ventricular bands.
Fifteen (15) mice were used for this study; 5 mice serving as control group were inoculated with 0.2 mL sterile PBS intradermally at the dorsum, ear pinna, and labial commissure. The remaining 10 mice were divided into two groups of 5 mice each; Dexamethasone group and non-Dexamethasone group.
Behnke, "Inter-Racial, Gender and Aging Influences in the Length of Anterior Commissure-Posterior Commissure Line," Journal of Korean Neurosurgical Society, vol.
Following application of 5% Povidone iodine on the skin of fused vulva, from ventral opening an incision was made on the fused vulva towards dorsally up to the level of dorsal commissure using B.P.
Mapping of segmented structures: Once the image registration process was completed, nine already segmented mid-brain structures of reference image ie left ventricle, right ventricle, 3rd ventricle, left putamen, right putamen, left caudate nucleus, right caudate nucleus, anterior commissure and posterior commissure were mapped (Ali and Khan, 2011) from the reference image to target images by applying the final transformation achieved, as a result of registration process.
Remarks: Furcocercaria V shows the typical characteristics of the cercariae of Cotylurus Szidat, 1928 regarding the presence of four penetration gland-cells, colourless eye-spots, 20 flame cells and transverse commissure anterior to ventral sucker, only differ in the arrangement of penetration gland-cells (anterior to ventral sucker) (Niewiadomska, 2002).