Posterior commissure

commissure /com·mis·sure/ (kom´ĭ-shoor) a site of union of corresponding parts; specifically, the sites of junction between adjacent cusps of the heart valves.commis´sural

anterior commissure the band of fibers connecting the parts of the two cerebral hemispheres.

posterior commissure a large fiber bundle crossing from one side of the cerebrum to the other, dorsal to where the aqueduct opens into the third ventricle.

Gudden's commissure see supraoptic c's.

Meynert's commissure see supraoptic c's.

supraoptic commissures commissural fibers crossing the midline of the human brain dorsal to the caudal border of the optic chiasm, representing the combined commissures of Gudden and Meynert.

com·mis·sure (k

-sh

)

1. A line or place at which two things are joined.

2. A tract of nerve fibers passing from one side to the other of the spinal cord or brain.

3. The point, angle, or surface where two parts, such as the eyelids, lips, or cardiac valves, join or connect.

commis·sural adj.

commissure

[kom′isoo͡r, -syoo͡r]

1 a band of nerve fiber or other tissue that crosses from one side of the body to the other, usually connecting two structures or masses of tissue.

2 a site of union of two anatomic parts, as the corner of the eye, lips, or labia.

commissure [kom´ĭ-shūr]

1. a site of union of corresponding parts, such as the angle of the lips or eyelids.

2. the site of junction between adjacent cusps of a cardiac valve.

anterior commissure the band of fibers connecting the parts of the two cerebral hemispheres.

commissure of epithalamus a large fiber bundle that crosses the midline of the epithalamus just dorsal to the point where the cerebral aqueduct opens into the third ventricle.

middle commissure a band of gray matter joining the optic thalami; it develops as a secondary adhesion and may be absent.

posterior commissure commissure of epithalamus.

commissure (k

mish´ur),

n the corners of the oral cavity.

commissure, commissura

a site of union of corresponding parts, as the angle of the lips or eyelids; used also with specific reference to the sites of junction between adjacent cusps of the heart valves.

brain commissure

the bands of fibers connecting the parts of the two cerebral hemispheres. They include the corpus callosum, the largest commissure, a rostral commissure which is part of the paleopallium and the fornical commissure which is related to the archipallium, the caudal collicular commissure which connects the caudal colliculi (corpora quadrigemina). Called also cerebral commissure.

cerebral commissure

see brain commissure (above).

fornical commissure

interconnection between the right and left hippocampi. Called also fornical commissure.

habenular commissure

interconnection between the right and left habenular nuclei.

middle commissure

a band of gray matter joining the optic thalami; it develops as a secondary adhesion and may be absent.

posterior commissure

a large fiber bundle crossing from one side of the cerebrum to the other dorsal to where the aqueduct opens into the third ventricle.

spinal cord commissure

the gray and white commissures which connect the two sides of the spinal cord.

commissure

Band of nerve fibres connecting corresponding structures in the brain or spinal cord. See corpus callosum.

Mentioned in	?		References in periodicals archive	?		Medical browser	?		Full browser	?
anterior cerebral commissure Bruhner's method canarypox canthus central canal of spinal cord clitoris commissura commissural cell commissure of cerebral hemispheres commissurorrhaphy commissurotomy corpus callosum heteromeric hippocampal commissure labia majora laryngeal web longitudinal fissure of cerebrum mitral commissurotomy palpebral commissure	Posterior commissure stenosis post long-term intubation. Views of a type I posterior glottic stenosis before and after lysis by Davis-Malesevich, Melinda; Merati, Albert / Ear, Nose and Throat Journal In experiments on hamsters, the antibody revealed thin nerve connections running from pineal cells to the regions called the posterior commissure and the habenula. Pineal gland speaks to the brain by Science News Posterior commissure stenosis post long-term intubation. Interarytenoid mucosal bridges complicating endotracheal intubation by Schweinfurth, John / Ear, Nose and Throat Journal	postdistemper postductal postduplication phase postdural puncture headache postembryonic postencephalitic postepileptic poster(o)- poster- posterior posterior Achilles bursitis posterior ampullar nerve posterior antebrachial cutaneous nerve posterior asynclitism posterior atlantoaxial ligament posterior atlantooccipital membrane posterior auricular artery posterior auricular nerve posterior auricular vein posterior cardinal vein posterior cerebral commissure posterior chamber of eye posterior circumflex humeral artery posterior column posterior column of spinal cord Posterior commissure posterior common ligament posterior component posterior condyloid foramen posterior cord of brachial plexus posterior cord syndrome posterior costotransverse ligament posterior cruciate ligament posterior cruciate ligament injury posterior cutaneous nerve of arm posterior cutaneous nerve of forearm posterior cutaneous nerve of thigh posterior drawer sign posterior embryotoxon posterior ethmoidal artery posterior ethmoidal nerve posterior facial vein posterior focal point posterior fontanel posterior fossa posterior funiculus posterior horn posterior inferior cerebellar artery syndrome posterior intercostal vein posterior interosseous nerve posterior keratoconus	Posterior chamber Posterior chamber Posterior chamber Posterior Chamber Intraocular Lens posterior chamber luxation posterior chamber luxation posterior chamber luxation posterior chamber luxation posterior chamber of eye posterior chamber of eye posterior chamber of eye posterior chamber of eye Posterior Chamber Phakic Refractive Lens posterior chisel posterior chisel posterior chisel Posterior Choanal Atresia Posterior Circulation Infarct Posterior Circulation Syndrome Posterior circumflex humeral artery Posterior column Posterior column Posterior column Posterior column Posterior Column Ataxia with Retinitis Pigmentosa posterior column of spinal cord Posterior column-medial lemniscus pathway Posterior column-medial lemniscus pathway Posterior columns Posterior columns Posterior commissure posterior common ligament Posterior communicating Posterior communicating artery posterior component posterior condyloid foramen posterior cord of brachial plexus posterior cord syndrome posterior costotransverse ligament Posterior Cramer-Rao Bound Posterior Cramer-Rao Lower Bound Posterior cricoarytenoid posterior crossbite posterior crossbite posterior cruciate ligament posterior cruciate ligament posterior cruciate ligament injury Posterior Cruciate Sacrificing posterior cutaneous nerve of arm posterior cutaneous nerve of forearm posterior cutaneous nerve of forearm Posterior cutaneous nerve of the arm Posterior cutaneous nerve of the thigh posterior cutaneous nerve of thigh posterior cutaneous nerve of thigh Posterior deep temporal artery Posterior Deltoids Posterior Deltoids Posterior descending artery Posterior Distal Cement Extrusion

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References in periodicals archive

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anterior cerebral commissure
Bruhner's method
canarypox
canthus
central canal of spinal cord
clitoris
commissura
commissural cell
commissure of cerebral hemispheres
commissurorrhaphy
commissurotomy
corpus callosum
heteromeric
hippocampal commissure
labia majora
laryngeal web
longitudinal fissure of cerebrum
mitral commissurotomy
palpebral commissure

Posterior commissure stenosis post long-term intubation.

Views of a type I posterior glottic stenosis before and after lysis by Davis-Malesevich, Melinda; Merati, Albert / Ear, Nose and Throat Journal

In experiments on hamsters, the antibody revealed thin nerve connections running from pineal cells to the regions called the posterior commissure and the habenula.

Pineal gland speaks to the brain by Science News

Posterior commissure stenosis post long-term intubation.

Interarytenoid mucosal bridges complicating endotracheal intubation by Schweinfurth, John / Ear, Nose and Throat Journal

postdistemper

postductal

postduplication phase

postdural puncture headache