Somite Musculoskeletal Movie: Difference between revisions
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| width= | | width=350px|<html5media height="380" width="340">File:Somite 001.mp4</html5media> | ||
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===Somite Musculoskeletal Contributions to the Trunk=== | |||
Animation shows the musculoskeletal components formed from the somite. Somite origin structures are labeled pink. Note that dermis contribution from the somite is not shown in this animation. | |||
* Skeletal | |||
** Vertebra | |||
** Intervertebral Disc | |||
* Muscular | |||
** Epaxial muscles (dorsal) | |||
** Hypaxial muscles (ventral) | |||
:'''Links:''' [[Media:Somite 001.mp4|MP4]] | [[Lecture_-_Mesoderm_Development|Lecture - Mesoderm]] | [[Musculoskeletal_System_-_Axial_Skeleton_Development|Axial Skeleton]] | [[Musculoskeletal_System_-_Muscle_Development|Muscle]] | [[Musculoskeletal_System_Development|Musculoskeletal Development]] | [[Movies]] | |||
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| [[File:Somite_cartoon5.png]] | |||
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===Epaxial Muscles=== | |||
* lie dorsal to the horizontal septum of the vertebrae | |||
* innervated by the dorsal ramus of spinal nerves | |||
* Humans - erector spinae, transversospinal muscles (multifidus, semispinalis and rotatores), splenius and suboccipital muscles. | |||
* myogenesis regulated by Wnt (+) from neural tube and Shh (+) from floor plate and notochord. | |||
===Hypaxial Muscles=== | |||
* lie ventral to the horizontal septum of the vertebrae | |||
* innervated by the ventral ramus of spinal nerves | |||
* lateral and ventral muscle wall of the trunk (intercostal, abdominal) and limb muscles. | |||
* myogenesis regulated by Wnt (+) from dorsal ectoderm and BMP (-) from lateral mesoderm. | |||
<gallery> | |||
File:Somite cartoon1.png|'''1''' paraxial | |||
File:Somite cartoon2.png|'''2''' early somite | |||
File:Somite cartoon3.png|'''3''' sclerotome and dermomyotome | |||
File:Somite cartoon4.png|'''4''' dermatome and myotome | |||
File:Somite cartoon5.png|'''5''' somite spreading | |||
</gallery> | |||
''Note - the cartoons show just the embryo righthand side mesoderm development (the same events occur on the lefthand side).'' | |||
:[[Somitogenesis|'''Somite Links''']]: [[:File:Somite cartoon1.png|'''1''' paraxial]] | [[:File:Somite cartoon2.png|'''2''' early somite]] | [[:File:Somite cartoon3.png|'''3''' sclerotome and dermomyotome]] | [[:File:Somite cartoon4.png|'''4''' dermatome and myotome]] | [[:File:Somite cartoon5.png|'''5''' somite spreading]] | [[:File:Stage11_sem100.jpg|SEM image - Human Embryo (week 4) showing somites]] | [[Somitogenesis_Molecular_Movie|Movie - somitogenesis Hes expression]] | |||
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Latest revision as of 09:23, 8 March 2018
Embryology - 25 Apr 2024 Expand to Translate |
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<html5media height="380" width="340">File:Somite 001.mp4</html5media> |
Somite Musculoskeletal Contributions to the TrunkAnimation shows the musculoskeletal components formed from the somite. Somite origin structures are labeled pink. Note that dermis contribution from the somite is not shown in this animation.
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Epaxial Muscles
Hypaxial Muscles
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Cite this page: Hill, M.A. (2024, April 25) Embryology Somite Musculoskeletal Movie. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Somite_Musculoskeletal_Movie
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G