commissure


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

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.

com·mis·sure

(kom'i-shūr), [TA]
1. Angle or corner of the eye, lips, or labia.
2. A bundle of nerve fibers passing from one side in the brain or spinal cord to the other.
Synonym(s): commissura [TA]

commissure

(kŏm′ə-sho͝or′)
n.
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.

com′mis·su′ral adj.

com·mis·sure

(kom'i-shŭr) [TA]
1. Angle or corner of the eye, lips, or labia.
2. A bundle of nerve fibers passing from one side to the other in the brain or spinal cord.
Synonym(s): commissura [TA] .

commissure

1. A line or point at which two things are joined.
2. A nerve fibre bundle passing from one side of the brain or spinal cord to the other to connect similar structures.

commissure 

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

com·mis·sure

(kom'i-shŭr) [TA]
1. Angle or corner of the eye, lips, or labia.
2. A bundle of nerve fibers passing from one side in the brain or spinal cord to the other.
References in periodicals archive ?
Lip and oral commissure reconstruction with the radial forearm flap.
Preoperative image of an umbrella cockatoo with mass located at the lateral commissure of the beak, with associated swelling around the right eye.
Each pair of ganglia is connected to each other by connective nerves and bilaterally by inter-ganglionic nerve commissures (Fig.
A difference in the position of the commissures of [greater than or equal to]2.5 mm was chosen as an indicator of the upper lip asymmetry based on studies involving the recognition of a maxillary cant and the study of Batwa et al.
Eight patients in the group 1 and 40 in the group 2 had an anterior commissure involvement.
Scabs formation was observed at the inoculation sites of mice inoculated at the dorsum and labial commissure after 5 days of inoculation.
But by seeing the nutritional status of heifer and available area in the dorsal aspect of dorsal vulval commissure, it was decided to go for dorsal episiotomy rather than dorso-lateral episiotomy and cesarean section to relieve dystocia.
###No.###Ventricle Ventricle Ventricle Putamen Putamen###Commissure Commissure
We performed radical surgical excision of the lesion, resulting in a full-thickness defect with preservation of only 10% of the lower lip near the left commissure (Fig.
Particularly, maxilla-mandibular growth on the malformed side developed sufficiently to reestablish normal occlusion and an almost complete facial symmetry, with levelling of the occlusal plane and oral commissure (Figures 1 and 5).