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Gastrulation - Anatomy & Physiology
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Revision as of 19:37, 29 August 2008
5 bytes removed
,
19:37, 29 August 2008
→Gastrulation at the Node
Line 81:
Line 81:
***The node then regresses posteriorly, destroying the primitive streak and forming the '''notochord''' (axial mesoderm).
***The node then regresses posteriorly, destroying the primitive streak and forming the '''notochord''' (axial mesoderm).
***The notochord begins at the level of the midbrain.
***The notochord begins at the level of the midbrain.
−
****Anterior cells are developing before posterior cells have
even
undergone gastrulation.
+
****Anterior cells are developing before posterior cells have undergone gastrulation.
==Gastrulation at the Tail Bud==
==Gastrulation at the Tail Bud==
Shamilton
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