请输入您要查询的单词:

 

单词 craniorachischisis
释义

craniorachischisis

English

Etymology

cranio- + rachischisis

Noun

craniorachischisis (plural craniorachischises)

  1. (pathology) A defect of the neural tube in which both the brain and spinal cord are left open
    • 2015, Hernando R. Alvis-Miranda et al., “Iniencephaly: Case Report”, in Journal of Pediatric Neurosciences, volume 10, DOI:10.4103/1817-1745.159211:
      The neural tube closure occurs around day 28 after conception; its closure failure may result in a defect that can range from anencephaly, incompatible with life, to small meningoceles.[ 1 ] The definition of neural tube defects (NTD) include anencephaly, craniorachischisis, iniencephaly, meningocele, meningomyelocele, and encephalocele, but not isolated findings of hydrocephalus or spina bifida oculta.[ 1 ] Iniencephaly, from the ancient Greek “inion” meaning “nape of the neck”, had its first report by Saint-Hilaire in 1836,[ 2 ] is characterized by a variable defect of the occipital bone, resulting in a large foramen magnum; partial or total absence of the cervical and thoracic vertebrae with irregular melting of those present, accompanied by incomplete closure of arcs and/or vertebral bodies, marked lordosis, hyperextension of the cervicothoracic spine; and a face deflected up.[ 3 ] The incidence is about 1:1000–1:2000 births,[ 4 ] then is a pretty rare NTD.
随便看

 

国际大辞典收录了7408809条英语、德语、日语等多语种在线翻译词条,基本涵盖了全部常用单词及词组的翻译及用法,是外语学习的有利工具。

 

Copyright © 2004-2023 idict.net All Rights Reserved
京ICP备2021023879号 更新时间:2024/11/5 21:38:33