|Embryology - 22 Apr 2021 Expand to Translate|
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|notochord occurring during week 3 of human development. The specialised region goes through a number of early changes before forming the notochord (or axial mesoderm).
The right hand side of the gastrulating embryonic disc is removed to the midline to show the the position of the initial axial process (purple). As the animation plays the axial process extends rostrally from the primitive node towards the buccopharyngeal membrane, where it stops.
A cross-section view above the primitive node is shown in the second animation below.
The view is a cross-section if the above animation, showing how the axial process initially is formed, then fused with the endoderm, to finally separate as a midline mesoderm structure.
Yellow - endoderm | Purple - axial process
Cite this page: Hill, M.A. (2021, April 22) Embryology Notochord Movie. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Notochord_Movie
- © Dr Mark Hill 2021, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G