Neural tube

Neural tube
Transverse section of half of a chick embryo of forty-five hours' incubation. The dorsal (back) surface of the embryo is toward the top of this page, while the ventral (front) surface is toward the bottom. (Neural tube is in green.)
Chick embryo of thirty-three hours' incubation, viewed from the dorsal aspect (30x magnification)
Details
Carnegie stage10
PrecursorNeural groove
Gives rise toCentral nervous system (brain and spinal cord)
Identifiers
Latintubus neuralis, tuba neuralis
MeSHD054259
TEtube_by_E5.14.1.0.0.0.1 E5.14.1.0.0.0.1
Anatomical terminology

In the developing chordate (including vertebrates), the neural tube is the embryonic precursor to the central nervous system, which is made up of the brain and spinal cord. The neural groove gradually deepens as the neural folds become elevated, and ultimately the folds meet and coalesce in the middle line and convert the groove into the closed neural tube. In humans, neural tube closure usually occurs by the fourth week of pregnancy (the 28th day after conception).

Stages of neural tube formation.