Developmental Mechanism - Axes Formation

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Cite this page: Hill, M.A. (2024, March 28) Embryology Developmental Mechanism - Axes Formation. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Developmental_Mechanism_-_Axes_Formation

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

Introduction

Anatomical axes comparison
Anatomical axes comparison
Axes
Axes

How do you establish the anatomical axes of the embryo?

Note there is some confusion arising in the terminology when comparing animal developmental axes and those of human anatomical axes.


Axes - "the plural of Axis".


Axes Formation: Dorsal-Ventral Axis | Cranio-Caudal Axis | Left-Right Axis

Mechanism Links: mitosis | cell migration | cell junctions |epithelial invagination | epithelial mesenchymal transition | mesenchymal epithelial transition | epithelial mesenchymal interaction | morphodynamics | tube formation | apoptosis | autophagy | axes formation | time | molecular

Some Recent Findings

More recent papers
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Search term: Axes Formation

<pubmed limit=5>Axes Formation</pubmed>

Dorsal-Ventral Axis

dorsoventral, dorso-ventral

Human anatomical position - anterior (ventral), posterior (dorsal)

First break in embryonic symmetry is the anteroposterior axis (A-P) sagittal plane

  • BMP, Wnt, transforming growth factor-beta (TGF-beta), fibroblast growth factor (FGF)


Links: Dorsal-Ventral Axis

Cranio-Caudal Axis

rostrocaudal, craniocaudal, head to tail, superior-inferior, longitudinal plane


Links: Cranio-Caudal Axis

Left-Right Axis

[[File:Stage8_nodal_cilia.jpg|thumb|300px|alt=Primitive node cilia|Primitive node cilia (human stage 8) left-right axis (L-R) transverse plane

    • Nodal induces its own expression and that of Lefty, a Nodal feedback inhibitor with a longer diffusion range.
Links: Left-Right Axis

References

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Textbooks

Gilbert SF. Developmental Biology. 6th edition. Sunderland (MA): Sinauer Associates; 2000. Axis Formation in Amphibians: The Phenomenon of the Organizer

Lodish H, Berk A, Zipursky SL, et al. Molecular Cell Biology. 4th edition. New York: W. H. Freeman; 2000. Anteroposterior Specification during Embryogenesis | Dorsoventral Patterning by TGFβ-Superfamily Proteins | Molecular Mechanisms of Responses to Morphogens

Madame Curie Bioscience Database Austin (TX): Landes Bioscience; 2000. The Role of Wnt Signaling in Vertebrate Head Induction and the Organizer-Gradient Model Dualism

Reviews

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Embryonic Axes: The Long and Short of It in the Mouse http://www.sciencedirect.com/science/article/pii/S0960982204001484

Articles

Dynamics of anterior–posterior axis formation in the developing mouse embryo http://www.nature.com/ncomms/journal/v3/n2/full/ncomms1671.html

Search PubMed

Search Pubmed: Embryo Axes Formation


Terms

  • Longitudinal - (vertical) cranial to caudal (intersection of coronal and sagittal planes) superior inferior
  • Sagittal - anteroposterior (intersection of sagittal and transverse planes) anterior (ventral)
  • Transverse - horizontal (intersection of coronal and transverse planes) Left Right (sinister,dexter)

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Mechanism Links: mitosis | cell migration | cell junctions |epithelial invagination | epithelial mesenchymal transition | mesenchymal epithelial transition | epithelial mesenchymal interaction | morphodynamics | tube formation | apoptosis | autophagy | axes formation | time | molecular


Glossary Links

Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link

Cite this page: Hill, M.A. (2024, March 28) Embryology Developmental Mechanism - Axes Formation. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Developmental_Mechanism_-_Axes_Formation

What Links Here?
© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G