(redirected from Anterior commissure)
Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to Anterior commissure: Posterior commissure, Hippocampal commissure


1. A line or place at which two things are joined.
2. Anatomy
a. A tract of nerve fibers passing from one side to the other of the spinal cord or brain.
b. The point or surface where two parts, such as the eyelids, lips, or cardiac valves, join or form a connection.
3. Botany The surface or place along which two structures, such as carpels, are joined.

[Middle English, from Latin commissūra, from commissus, past participle of committere, to join; see commit.]

com′mis·su′ral adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Biology) a band of tissue linking two parts or organs, such as the nervous tissue connecting the right and left sides of the brain in vertebrates
2. (Biology) any of various joints between parts, as between the carpels, leaf lobes, etc, of a plant
[C15: from Latin commissūra a joining together, from committere commit]
commissural adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈkɒm əˌʃʊər, -ˌʃɜr)

1. a joint or seam where two parts meet, as in a bone.
2. a connecting bundle of nerve fibers, esp. one joining the right and left sides of the brain.
[1375–1425; late Middle English (< Middle French) < Latin commissūra=commiss(us) (see commissary) + -ūra -ure]
com•mis•su•ral (kəˈmɪʃ ər əl, ˌkɒm əˈʃʊər əl, -ˈʃɜr-) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.commissure - a bundle of nerve fibers passing from one side to the other of the brain or spinal cord
nerve pathway, nerve tract, pathway, tract - a bundle of myelinated nerve fibers following a path through the brain
corpus callosum - a broad transverse nerve tract connecting the two cerebral hemispheres
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n. comisura, punto de unión de estructuras tal como la unión de los labios.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
Between December 2013 and November 2017, patients with single midcord lesions that did not extend to the anterior commissure (early glottic cancer [T1a]) were primarily offered transoral laser cordectomy at the University of Health Sciences, 1s-tanbul Training and Research Hospital Otolaryngology Clinic.
Compared with FED, BD tended to present prolapse in A2, A3, P1, P3, anterior commissure, and posterior commissure.
The tumor originated from the petiole of the larynx and was invading the ventricules and anterior vocal cords bilaterally and extending to the anterior commissure with no cartilage invasion.
A loop of a rubber band was clearly visible in the supraglottis and extending through the glottis in an anterior-posterior orientation with one arm in the anterior commissure. There was granulation tissue in the anterior and posterior glottises.
On direct laryngoscopy performed under general anesthesia, a smooth polypoid mass holding on the anterior commissure and the left cord with a wide pedicle was observed (Figure 1).
All of the naive T1-weighted images were manually reorientated by setting the coordinate origin of each image on anterior commissure. The default parameters of VBM8 toolbox were used for preprocessing steps.
Using this scheme, the aim was to segment nine mid-brain structures including left ventricle, right ventricle, third ventricle, anterior commissure, posterior commissure, left putamen, right putamen, left caudate nucleus and right caudate nucleus.
5 were bilateral with involvement of anterior Commissure. 2 were unilateral with the lesion occupying the middle third of right vocal cord.
Growth was located in the anterior part of the left vocal cord just reaching to anterior commissure measuring 40 mm x 50 mm in size.
The anterior commissure leaflet was resected together with the vegetation and ruptured chordae tendineae, followed by mitral valve replacement.
Medical management is advised for mucosal edema, hematomas with intact mucosa coverage, or small glottic lacerations; disruptions of the anterior commissure, multiple displaced cartilage fractures, and larger open lacerations require open laryngeal exploration.
[2] The common sites of occurrence of the benign lesions of larynx are vocal cords, anterior commissure, false cords, epiglottis, aryepiglottic folds and ventricle in chronological order.

Full browser ?