File:Mesoderm cartoon 06.jpg: Difference between revisions

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Trilaminar embryo
==2. Somite Development - Early Somite==


'''Mesoderm Cartoon Links:''' [[:File:Mesoderm cartoon 01.jpg|Trilaminar]] | [[:File:Mesoderm cartoon 02.jpg|Trilaminar 2]] | [[:File:Mesoderm cartoon 03.jpg|Trilaminar 3]] | [[:File:Mesoderm cartoon 04.jpg|Neural Crest]] | [[:File:Mesoderm cartoon 05.jpg|Paraxial]] | [[:File:Mesoderm cartoon 06.jpg|Early Somite]] | [[:File:Mesoderm cartoon 07.jpg|Somite]] | [[:File:Mesoderm cartoon 08.jpg|Myotome Dermatome Sclerotome]] | [[:File:Mesoderm cartoon 09.jpg|Somite Separation]] |
* Paraxial mesoderm towards the rostral (cranial) end, begins to segment forming the first somite.
* Somites are then sequentially added caudally in pairs.  
* The somite surface cells undergo a mesenchymal to epithelial transition, forming a transient epithelial covering on each somite.
* The mesoderm under the surface remains as mesenchyme and proliferates.
* The early forming somites have a cavity (somitocoel) in their core that is lost as the somite matures.


[[Category:Mesoderm]] [[Category:Musculoskeletal]] [[Category:Cartoon]]
 
{{Somite cartoon}}

Latest revision as of 19:39, 16 May 2014

2. Somite Development - Early Somite

  • Paraxial mesoderm towards the rostral (cranial) end, begins to segment forming the first somite.
  • Somites are then sequentially added caudally in pairs.
  • The somite surface cells undergo a mesenchymal to epithelial transition, forming a transient epithelial covering on each somite.
  • The mesoderm under the surface remains as mesenchyme and proliferates.
  • The early forming somites have a cavity (somitocoel) in their core that is lost as the somite matures.


Note - the cartoons show just the embryo righthand side mesoderm development (the same events occur on the lefthand side).

Somite Links: 1 paraxial | 2 early somite | 3 sclerotome and dermomyotome | 4 dermatome and myotome | 5 somite spreading | SEM image - Human Embryo (week 4) showing somites | Movie - somitogenesis Hes expression
  • Somite Cartoons
  • paraxial

    paraxial

  • early somite

    early somite

  • sclerotome and dermomyotome

    sclerotome and dermomyotome

  • dermatome and myotome

    dermatome and myotome

  • somite spreading

    somite spreading

Cite this page: Hill, M.A. (2024, June 26) Embryology Mesoderm cartoon 06.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Mesoderm_cartoon_06.jpg

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

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