![edge of central canal, edge of spinal cord, surface ectoderm](/drem/stage15/Z1/S553Z1.jpg)
![](/drem/rulerbg.png)
0 μm
Carnegie Embryo #721 | Location: 27-02-05
Keywords: edge of central canal, edge of spinal cord, surface ectoderm
Source: The Virtual Human Embryo.
Keywords: edge of central canal, edge of spinal cord, surface ectoderm
Source: The Virtual Human Embryo.