![L-1 ventral primary ramus, L-2 ventral primary ramus, L-4 myotome, S-2 spinal nerve, S-3 spinal ganglion, T-11 spinal ganglion, T-12 myotome, T-12 spinal nerve, aorta, aortic bifurcation, intermediate zone, lumbar plexus, lumbosacral plexus, marginal zone, neural arch, notochord, postcardinal vein, ventricular zone](/drem/stage16/Z2/S967Z2.jpg)
![](/drem/rulerbg.png)
0 μm
Carnegie Embryo #6517 | Location: 41-02-01
Keywords: L-1 ventral primary ramus, L-2 ventral primary ramus, L-4 myotome, S-2 spinal nerve, S-3 spinal ganglion, T-11 spinal ganglion, T-12 myotome, T-12 spinal nerve, aorta, aortic bifurcation, intermediate zone, lumbar plexus, lumbosacral plexus, marginal zone, neural arch, notochord, postcardinal vein, ventricular zone
Source: The Virtual Human Embryo.