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Ontology Definition: TS16

Theiler Stage 16 - Closure of posterior neuropore; hind limb bud and tail bud

ts16_1

The hind limb bud becomes visible at the level of the 23rd-28th somites. The tail bud appears as a short stump and the 3rd and 4th branchial arches are distinctly concave. Rathke's pouch and the nasal processes start to form. At the end of this stage the posterior neuropore begins to close.

Absent: thin and long tail.

ts16_2

10 dpc (range 9.5-10.75)
30-34 somite pairs

Witschi Stage 20-21 (rat - stage table)
Carnegie - Stage 13 , Stage 14 , Stage 15 , (human - stage table)
Virtual Human Embryo - Stage 13 , Stage 14 , Stage 15

All scale bars in microns

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