![](/drem/stage18/labels/S822L.gif)
![S-3 dorsal root, S-4 dorsal root, S-5 dorsal root, alar plate(s), central canal, roof plate](/drem/stage18/Z0/S822N.jpg)
![](/drem/rulerbg.png)
0 μm
Carnegie Embryo #4430 | Location: 29-4
Keywords: S-3 dorsal root, S-4 dorsal root, S-5 dorsal root, alar plate(s), central canal, roof plate
Source: The Virtual Human Embryo.
Keywords: S-3 dorsal root, S-4 dorsal root, S-5 dorsal root, alar plate(s), central canal, roof plate
Source: The Virtual Human Embryo.