Plate 30
|
PLATE NUMBER |
STAGE |
TIME |
ORIENTATION |
IMAGE |
|
30 |
Neural tube stage Embryo stage 20 |
21 h 45 min p.f. |
Dorsal
Ventral |
Central transversal section |
Neural tube stage (embryo stage 20)
At this stage, the neurla tube is closing by the epithelial layers of the ectoderm. The somitogenic cells accumulate at the junction between the notochord and the neural tube. Somatic and splanchnic layers have become apparent within the lateral plate mesoderm,.