Somite Musculoskeletal Movie: Difference between revisions

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| width=250px|<mediaplayer width='200' height='220' image="http://embryology.med.unsw.edu.au/embryology/images/5/58/Somite_001_icon.jpg">File:Somite 001.mp4</mediaplayer>
| width=350px|<html5media height="380" width="340">File:Somite 001.mp4</html5media>
| [[File:Somite_001_icon.jpg|100px|right]] Animation shows the musculoskeletal components formed from the somite.
| [[File:Somite_001_icon.jpg|100px|right]]  
Somite origin structures are labeled pink.
===Somite Musculoskeletal Contributions to the Trunk===


* Vertebra
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.
* Intervertebral Disc
* Epaxial muscles (dorsal)
* Hypaxial muscles (ventral)


* Skeletal
** Vertebra
** Intervertebral Disc
* Muscular
** Epaxial muscles (dorsal)
** Hypaxial muscles (ventral)


:'''Links:'''  [[Media:Somite 001.mp4|MP4 version]] | [[Media:Somite 001.mov|Quicktime version]] | [[Lecture_-_Mesoderm_Development|Lecture - Mesoderm]] | [[Musculoskeletal_System_-_Axial_Skeleton_Development|Axial Skeleton]] | [[Musculoskeletal_System_-_Muscle_Development|Muscle]] | [[Musculoskeletal_System_Development|Musculoskeletal Development]]
|}


:'''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]]
|-
| [[File:Somite_cartoon5.png]]
|
===Epaxial Muscles===
===Epaxial Muscles===
* lie dorsal to the horizontal septum of the vertebrae
* lie dorsal to the horizontal septum of the vertebrae
* innervated by the dorsal ramus of spinal nerves
* innervated by the dorsal ramus of spinal nerves
* Humans - erector spinae, transversospinal muscles (multifidus, semispinalis and rotatores), splenius and suboccipital muscles.
* 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===
===Hypaxial Muscles===
* lie ventral to the horizontal septum of the vertebrae
* lie ventral to the horizontal septum of the vertebrae
*  innervated by the ventral ramus of spinal nerves
*  innervated by the ventral ramus of spinal nerves
* lateral and ventral muscle wall of the trunk, limb muscles.
* 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 10:23, 8 March 2018

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<html5media height="380" width="340">File:Somite 001.mp4</html5media>
Somite 001 icon.jpg

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: MP4 | Lecture - Mesoderm | Axial Skeleton | Muscle | Musculoskeletal Development | Movies
Somite cartoon5.png

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.


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



Glossary Links: 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 | Movies


Cite this page: Hill, M.A. (2024, March 28) Embryology Somite Musculoskeletal Movie. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Somite_Musculoskeletal_Movie

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