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Copyright © 1995 to the
"Frontiers in Bioscience"

DAY

STAGE ACTION

CARNEGIE STAGE

ORIENTATION

IMAGE

LENGHT (mm)

20

8-Somite.
Neural folds fuse opposite.
Neural tube is open with the amniotic cavity

10

Cranial

Caudal

Dorsal view

2,0-3,5

Eight somite embryo, Carnegie stage 10, dorsal view, ~day22

At this stage, the fusion of the neural plate has created the neural tube. The tube, however, is open to the amniotic cavity at its both ends, the so-called rostral and caudal neuropores