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| Neural folds | ||
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| Chick embryo of thirty-three hours’ incubation, viewed from the dorsal aspect. X 30. (Neural fold labeled at center left, third from the bottom.) | ||
| Gray's | subject #7 50 | |
| Carnegie stage | 9 | |
| Precursor | neural plate | |
| Gives rise to | neural tube | |
In front of the primitive streak two longitudinal ridges, caused by a folding up of the ectoderm, make their appearance, one on either side of the middle line. These are named the neural folds; they commence some little distance behind the anterior end of the embryonic disk, where they are continuous with each other, and from there gradually extend backward, one on either side of the anterior end of the primitive streak. Also after differentiation it turns into the neural tubes
Additional images
 longitudinal section through the embryo. |
 Cross section through the embryonic disc showing the fold. |
External links
- Swiss embryology (from UL, UB, and UF) hdisqueembry/triderm10
- Diagram at umich.edu
- Overview at visembryo.com
- Diagram at palaeos.com
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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 As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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Wikipedia content modification information:
- This page was last modified on 2 May 2008, at 18:41.
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