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单词 anterior commissure
释义 DictionarySeecommissure

anterior commissure


anterior commissure

[an′tir·ē·ər ′käm·ə·shu̇r] (neuroscience) A bundle of nerve fibers that cross the midline of the brain in front of the third ventricle and serve to connect parts of the cerebral hemispheres.

anterior commissure


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 valve" >cardiac valve.anterior commissure the band of fibers connecting the parts of the two hemispheres" >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.

an·te·ri·or com·mis·sure

[TA] a round bundle of nerve fibers that crosses the midline of the brain near the anterior limit of the third ventricle. It consists of a smaller anterior part (pars anterior commissurae anterioris [TA]), the fibers of which pass in part to the olfactory bulbs, and a larger posterior part (pars posterior commissurae anterioris [TA]), which interconnects the left and right temporal lobes. Synonym(s): commissura anterior [TA]

anterior commissure

The anterior ligamentous attachment of the true vocal cords to the thyroid cartilage, which, because it lacks an internal perichondrium, is a common site of extension of squamous cell carcinomas from the anterior commissure.

an·te·ri·or com·mis·sure

(an-tēr'ē-ŏr kŏm'i-shŭr) [TA] A round bundle of nerve fibers that crosses the midline of the brain near the anterior limit of the third ventricle. It consists of a smaller anterior part, the fibers of which pass in part to the olfactory bulbs, and a larger posterior part, which interconnects the left and right temporal lobes.
Synonym(s): precommissure.
[L. commissura anterior]

anterior commissure

A nerve fibre bundle running across the midline of the brain from one hemisphere to the other, just in front of the THIRD VENTRICLE.
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更新时间:2025/3/4 9:17:53