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*  Myogenic specification in somites: induction by axial structures | Development
Somites from older embryos (stage 13-15, 18-26 somites) showed the same pattern of myogenic specification--all but the three ... By Hamburger and Hamilton stage 12 (15-17 somites), the three most caudal somites were not specified to be myogenic while most ... 12-14 somites). At this stage, only the somites in the rostral half of the embryo are myogenically specified. ... We also found fiber diversity in explants of unspecified somites (the three most caudal somites from stage 11 to 15) when they ...
http://dev.biologists.org/content/120/6/1443
*  Building a chordate: the notochord
c Cross section of later neurula of amphioxus showing notochord (no) and dorsal nerve cord (nc); somites indicated by diagonal ... and somites indicated, respectively, by horizontal and diagonal hatching. ...
https://freethoughtblogs.com/pharyngula/2015/12/28/building-a-chordate-the-notochord/
*  DEVELOPMENT OF MESODERM AND COELOME -GASTRULATION IN CHICK: | BIOZOOM
They are called somites. The first pair of somites will form after 21 hours of incubation. Afterwards, for every one hour one ... The 24 hours old embryo contains four pairs of somites. The intermediate mesoderm connects the dorsal mesoderm with lateral ...
http://www.biozoomer.com/2012/11/development-of-mesoderm-and-coelome.html
*  Axonal pathfinding and neural crest cells
Ephrins are short-range repulsive cues to prevent cell mixing between adjacent somites. The posterior half of the somite ... Neural crest cells migrate through the anterior half of the somite but avoid the posterior half due to repulsive ephrin signals ... The posterior half of each somite expresses ephrin, relegating neural crest cells to migrate through the anterior half of each ... from somite's posterior half.. What are the derivatives of neural crest?. Neural crest cells form dorsal root ganglia (sensory ...
https://studentreader.com/7393G/axonal-pathfinding-neural-crest-cells/
*  WikiGenes - Somites
Chemical compound and disease context of Somites. *In contrast, early somite stage embryos (4-6 somite stage) appear to be less ... Tbx24, encoding a T-box protein, is mutated in the zebrafish somite-segmentation mutant fused somites. Nikaido, M., Kawakami, A ... Associations of Somites with chemical compounds. *Retinoic-acid-deficient embryos exhibit somite left-right asymmetry, but it ... Gene context of Somites. *The mouse pudgy mutation disrupts Delta homologue Dll3 and initiation of early somite boundaries [23] ...
https://www.wikigenes.org/e/mesh/e/17832.html
*  Somite | definition of somite by Medical dictionary
... somite explanation free. What is somite? Meaning of somite medical term. What does somite mean? ... Looking for online definition of somite in the Medical Dictionary? ... Related to somite: neural crest. somite. [so´mīt] one of the paired segments along the neural tube of a vertebrate embryo, ... The first somite to appear is in the future occipital region, and the formation of new somites continues in a caudal direction ...
https://medical-dictionary.thefreedictionary.com/somite
*  JCM | Free Full-Text | Epithelial-Mesenchymal Transitions during Neural Crest and Somite Development
The neural crest and somites, progenitors of the peripheral nervous system and of skeletal tissues, respectively, beautifully ... Kalcheim, C. Epithelial-Mesenchymal Transitions during Neural Crest and Somite Development. J. Clin. Med. 2016, 5, 1. ... The neural crest and somites, progenitors of the peripheral nervous system and of skeletal tissues, respectively, beautifully ... Kalcheim C. Epithelial-Mesenchymal Transitions during Neural Crest and Somite Development. Journal of Clinical Medicine. 2016; ...
https://www.mdpi.com/2077-0383/5/1/1
*  Xenopus Anatomy Ontology: Summary for trunk somite 10
myotome of trunk somite 10 NF stage 24 to NF stage 47 ... Parent(s): trunk somite (is_a) References: NCBO BioPortal , ... sclerotome of trunk somite 10 NF stage 24 to NF stage 47 ... Synonyms: somite 10 Definition: 'The 8th somite located ...
http://www.xenbase.org/anatomy/showanatomy.do?method=displayAnatomySummary&anatomyId=399
*  Somite - Wikipedia
A somite is a division of the body of an animal or embryo. Somites are bilaterally paired blocks of paraxial mesoderm that form ... Somite formation can be induced by Noggin-secreting cells. The number of somites is species dependent and independent of embryo ... The somites appear on both sides of the neural tube simultaneously. Experimental manipulation of the developing somites will ... In current crustaceans, several of those somites may be fused.[citation needed] In some older texts, somites are referred to as ...
https://en.wikipedia.org/wiki/Somite
*  Distinct signal/response mechanisms regulate pax1 and QmyoD activation in sclerotomal and myotomal lineages of quail somites. ...
... anterior to posterior progression until the 22 somite stage, after which time QmyoD is activated in somite I immediately ... In contrast, QmyoD is delayed and does not occur until embryos have 12-14 somites. At this time, QmyoD is the first of the ... Pax1 and QmyoD are early sclerotome and myotome-specific genes that are activated in epithelial somites of quail embryos in ... These somite transplantation studies, therefore, provide a basis for understanding the different developmental kinetics of ...
https://www.ncbi.nlm.nih.gov/pubmed/9187082?dopt=Abstract
*  Defective somite patterning in mouse embryos with reduced levels of Tbx6 | Development
The defect in somite formation in rv/rv mice is due to disruption of R-C patterning of the somites and this ultimately leads to ... Mesp2 marks the rostral half of the forming somite and plays a role in specifying rostral somite compartment identity, as ... prior to somite formation. Mutations in various components of the Notch signaling pathway disrupt the process of somite ... Dll1 is required for proper R-C patterning of the somites and for epithelialization of the somites (Hrabe de Angelis et al., ...
http://dev.biologists.org/content/130/8/1681
*  ZFIN Anatomy Ontology: somite 28
myotome somite 28 sclerotome somite 28 myotome somite 28 sclerotome somite 28 Show first 5 Terms ...
https://zfin.org/action/ontology/term-detail/ZFA:0000856
*  β-Catenin controls cell sorting at the notochord-somite boundary independently of cadherin-mediated adhesion | JCB
The notochord-somite boundary divides the trunk mesoderm into a dorsal-most notochord and lateral somites. In X. laevis, the ... 1 (B and C). (A′, C′, and D′) Arrowheads, notochord-somite boundary. no, notochord; so, somite. (E and E′) β-catenin-myc- ... Positive cells were found in the somites but not in the notochord. Arrows, notochord-somite boundary. Bar, 50 μm. (C) Merged ... Once in the somites, β-catenin-eYFP-expressing cells ceased to show random protrusive activity and adopted an elongated ...
http://jcb.rupress.org/content/170/4/675
*  Somite formation and expression of MyoD, myogenin and myosin in Atlantic halibut (Hippoglossus hippoglossus L.) embryos...
5O), WM-ISH signals were identified adaxially in somites 4-10 at the 17-somite stage (Fig. 5P). By the 20-somite stage, MyHC ... 5I). In 20-somite stage embryos (Fig. 5J) the whole of somites 3-20 expressed myogenin mRNA. All somites except number 1 and 2 ... 5K,L). Between somite stages 30 to 40 myogenin expression was downregulated in more cranial somites so that only somites 25-40 ... to 15-somite stage as it progressed caudally and was found in adaxial cells of somites 3-15 and in lateral cells of somites 7- ...
http://jeb.biologists.org/content/209/13/2432
*  Talk:Somite Musculoskeletal Movie - Embryology
The expression of Myf5 defines different muscle populations in the somite. Furthermore, Myf5 expression is also found in non- ... Retrieved from 'https://embryology.med.unsw.edu.au/embryology/index.php?title=Talk:Somite_Musculoskeletal_Movie&oldid=121533' ...
https://embryology.med.unsw.edu.au/embryology/index.php?title=Talk:Somite_Musculoskeletal_Movie&
*  Paper - Description of a Human Embryo of 13-14 Mesodermic Somites - Embryology
Mesodermic Somites and Notochord. There are thirteen pairs of well-formed mesodermic somites, and in addition to these there is ... Historic Stage 11 Papers: 13-14 Somites , Carnegie Institution No.131 A human embryo with 14 pairs of somites , Carnegie ... Thismost anterior and rudimentary pair of somites is situated just at the level of the neck bend. The last pair of somites are ... As the ganglia are not developed, it is not possible to differentiate the regions to which the somites belong. Each somite has ...
https://embryology.med.unsw.edu.au/embryology/index.php/Paper_-_Description_of_a_Human_Embryo_of_13-14_Mesodermic_Somites
*  PCNS: a novel protocadherin required for cranial neural crest migration and somite morphogenesis in Xenopus. - Semantic Scholar
Somites and axial muscles also failed to undergo normal morphogenesis in these embryos. Thus, PCNS has essential functions in ... PCNS (Protocadherin in Neural crest and Somites), a novel Pcdh in Xenopus, is initially expressed in the mesoderm during ... gastrulation, followed by expression in the cranial neural crest (CNC) and somites. PCNS has 65% amino acid identity to Xenopus ... PCNS (Protocadherin in Neural crest and Somites), a novel Pcdh in Xenopus, is initially expressed in the mesoderm during ...
https://www.semanticscholar.org/paper/PCNS%3A-a-novel-protocadherin-required-for-cranial-in-Rangarajan-Luo/580705b3f99d4150d928ac755a191e77a0dfecc2
*  Thoracic Somite - Cellular Development, Function & Anatomy - LifeMap Discovery
Somites first appear on day 20 of gestation in humans, at the head-neck border and continue to form at a rate of 3-4 somite ... The process of somite formation is one of the defining characteristics of vertebrate development. This process occurs in an ... Somites are cellular masses originating from paraxial mesoderm on both sides of neural tube during embryogenesis. ... The thoracic somites contribute to future thoracic vertebrae, ribs, muscle and dermis. ...
https://discovery.lifemapsc.com/in-vivo-development/somite/thoracic-somite
*  Somite polarity and segmental patterning of the peripheral ner...
Somite polarity and segmental patterning of the peripheral nervous system.: The analysis of the outgrowth pattern of spinal ... Somite polarity and segmental patterning of the peripheral nervous system.. Authors * Kuan, C-Y Kelly ... The analysis of the outgrowth pattern of spinal axons in the chick embryo has shown that somites are polarized into anterior ... Much progress has been made recently in understanding the molecular basis for somite polarization, and its linkage with Notch/ ...
https://www.mysciencework.com/publication/show/somite-polarity-segmental-patterning-peripheral-nervous-system-bcfadc97
*  Shh regulates chick Ebf1 gene expression in somite development - RVC Research Online
To assess this hypothesis, the expression profile of cEbf1 was first detailed in somites of chick embryos (from HH8 to HH28). ... Shh regulates chick Ebf1 gene expression in somite development. Gene, 554 (1). pp. 87-95. ...
http://researchonline.rvc.ac.uk/8777/
*  Development of somites and their derivatives in amphioxus, and implications for the evolution of vertebrate somites | EvoDevo |...
... amphioxus somites generally have been thought to remain entirely epithelial. Here, we examined amphioxus somites and ... Amphioxus somites have myotome and non-myotome compartments, but development and fates of the latter are incompletely described ... Insights into somite evolution can come from studying amphioxus, the best extant approximation of the chordate ancestor. ... The amphioxus somite differentiates medially into myotome, laterally into the external cell layer (a sub-dermal mesothelium), ...
https://evodevojournal.biomedcentral.com/articles/10.1186/s13227-015-0007-5
*  Download PDF by Humio Mizoguti: A Fifteen-somite Human Embryo (Advances in Anatomy, - Intierprais-s E-books
Read or Download A Fifteen-somite Human Embryo (Advances in Anatomy, Embryology and Cell Biology) PDF ... Extra resources for A Fifteen-somite Human Embryo (Advances in Anatomy, Embryology and Cell Biology) ... A Fifteen-somite Human Embryo (Advances in Anatomy, Embryology and Cell Biology) by Humio Mizoguti. by Anthony. 4.3 ... This e-book offers particular morphological beneficial properties of a truly good preserved human embryo with fifteen somites. ...
http://enterprise62.ru/books/a-fifteen-somite-human-embryo-advances-in-anatomy-embryology-and-cell-biology
*  Spina Bifida Research Bibliography: Disruption of PDGFR{alpha}-initiated PI3K activation and migration of somite derivatives...
Disruption of PDGFR{alpha}-initiated PI3K activation and migration of somite derivatives leads to spina bifida. Development. ... Disruption of PDGFR{alpha}-initiated PI3K activation and migration of somite derivatives leads to spina bifida ... are essential for cell migration of a somite-derived dorsal mesenchyme and disruption of receptor signaling in these cells ...
http://spina-bifida-bibliography.blogspot.com/2008/01/disruption-of-pdgfralpha-initiated-pi3k.html
*  Wheeless' Textbook of Orthopaedics
somites first form first occipital somites, at cranial end of the notochord;. - subsequent pairs of somites appear caudally ... Somites. - See: limb development. - Discussion:. - skeleton and skeletal muscle develop from the mesoderm;. - thin layer of ... total of some 42 to 44 pairs of somites are formed between the 21st and the 30th days of development;. - lateral plate mesoderm ... remains attached to ventrolateral angle of each somite by intermediate mesoderm, which later forms the nephrogenic cord;. - in ...
http://www.wheelessonline.com/ortho/somites