Neural groove

Neural groove
Human embryo—length, 2 mm. Dorsal view, with the amnion laid open. X 30.
Gray's	subject #7 50
Carnegie stage	9
Precursor	neural plate
Gives rise to	neural tube

Between the neural folds is a shallow median groove, the neural groove. The 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 a closed tube, the neural tube or canal, the ectodermal wall of which forms the rudiment of the nervous system.

Additional images

Model of human embryo 1.3 mm. long.

External links

• Swiss embryology (from UL, UB, and UF) iperiodembry/carnegie03
• Embryology at UNSW Notes/week3_5
• Diagram at embryology.med.unsw.edu.au

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated.