Neural tube — Transverse section of half of a chick embryo of forty five hours incubation. The dorsal (back) surface of the embryo is towards the top of this page, while the ventral (front) surface is towards the bottom. (Neural tube is in green.) … Wikipedia
neural tube — n. a primitive, tubular, dorsal structure formed from ectodermal tissue in the early vertebrate embryo, that develops into the brain and spinal cord … English World dictionary
neural tube — the embryological structure from which the brain and spinal cord develop. It is a hollow tube of ectodermal tissue formed when two edges of a groove in a plate of primitive neural tissue (neural plate) come together and fuse. Failure of normal… … The new mediacal dictionary
Neural tube defect — Classification and external resources ICD 10 Q00, Q01, Q05 … Wikipedia
neural tube defect — n any of various congenital defects (as anencephaly and spina bifida) caused by incomplete closure of the neural tube during the early stages of embryonic development * * * a developmental anomaly consisting of failure of closure of the neural… … Medical dictionary
neural tube defect — Pathol. any of a group of congenital abnormalities involving the brain and spinal cord, including spina bifida and meningocele, caused by failure of the neural tube to close properly during embryonic development. [1885 90] * * * Congenital defect … Universalium
Neural tube defect (NTD) — A birth defect caused by abnormal development of the neural tube. (The neural tube is the structure present during embryonic life which gives rise to the central nervous system to the brain and the spinal cord.) The best known neural tube defects … Medical dictionary
neural tube defects — a group of congenital abnormalities caused by failure of the neural tube to form normally. In spina bifida the bony arches of the spine, which protect the spinal cord and its coverings (the meninges), fail to close. More severe defects of fusion… … Medical dictionary
neural tube defects — a group of congenital abnormalities caused by failure of the neural tube to form normally. In spina bifida the bony arches of the spine, which protect the spinal cord and its coverings (the meninges), fail to close. More severe defects of fusion… … The new mediacal dictionary
neural tube defect — Pathol. any of a group of congenital abnormalities involving the brain and spinal cord, including spina bifida and meningocele, caused by failure of the neural tube to close properly during embryonic development. [1885 90] … Useful english dictionary
