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 Brain of human embryo of four and a half weeks, showing interior of fore-brain. (Cephalic flexure visible at center top.) | |
| Anatomical terminology[edit on Wikidata] |
The first flexure of the embryonic brain appears in the region of the mid-brain, and is named the ventral cephalic flexure.
By means of it the fore-brain is bent in a ventral direction around the anterior end of the notochord and fore-gut, with the result that the floor of the fore-brain comes to lie almost parallel with that of the hind-brain.
This flexure causes the mid-brain to become, for a time, the most prominent part of the brain, since its dorsal surface corresponds with the convexity of the curve.
External links
- Diagram at unsw.edu.au (lower right)
- Overview at nlm.nih.gov - online book
- Diagram at nlm.nih.gov - online book
 | This anatomy article is a stub. You can help Misplaced Pages by expanding it. |
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
| Human embryonic development in the first three weeks | |||||||||
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| Week 1 | |||||||||
| Week 2 (Bilaminar) | |||||||||
| Week 3 (Trilaminar) |
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