Primitive groove
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Primitive groove
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This article may be confusing or unclear to readers. Please help clarify the article; suggestions may be found on the talk page. (December 2006) |
| Primitive groove | |
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| Surface view of embryo of Hylobates concolor. The amnion has been opened to expose the embryonic disk. | |
| Latin | sulcus primitivus |
| Gray's | subject #6 47 |
| Carnegie stage | 9 |
A shallow groove, the primitive groove, appears on the surface of the primitive streak, and the anterior end of this groove communicates by means of an aperture, the blastophore, with the yolk-sac.
External links
- Swiss embryology (from UL, UB, and UF) hdisqueembry/triderm02
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
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