Primitive groove

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Primitive groove
Gray14.png
Surface view of embryo of Hylobates concolor. The amnion has been opened to expose the embryonic disk.
Details
Carnegie stage 9
Latin sulcus primitivus
Dorlands
/Elsevier
g_12/12402766
Anatomical terminology

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.

References[edit]

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links[edit]