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Carnegie Stage   Figure

Primitive streak

Primitive streak

The transition of the node to primitive streak (Prim. Str.) is presumably occurring in the mid-dorsal region of the germ disk. The beginning of the streak is represented by the cells emerging from the under surface of the disk. Section 415.

Fig. 25. Heuser et al., 1945.


Keywords: germ disk, primitive streak


Source: The Virtual Human Embryo.