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J Anat. 2005 Nov;207(5):575-601.

Relations and interactions between cranial mesoderm and neural crest populations.

Author information

  • 1Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca 14853, USA. dmn2@cornell.edu

Abstract

The embryonic head is populated by two robust mesenchymal populations, paraxial mesoderm and neural crest cells. Although the developmental histories of each are distinct and separate, they quickly establish intimate relations that are variably important for the histogenesis and morphogenesis of musculoskeletal components of the calvaria, midface and branchial regions. This review will focus first on the genesis and organization within nascent mesodermal and crest populations, emphasizing interactions that probably initiate or augment the establishment of lineages within each. The principal goal is an analysis of the interactions between crest and mesoderm populations, from their first contacts through their concerted movements into peripheral domains, particularly the branchial arches, and continuing to stages at which both the differentiation and the integrated three-dimensional assembly of vascular, connective and muscular tissues is evident. Current views on unresolved or contentious issues, including the relevance of head somitomeres, the processes by which crest cells change locations and constancy of cell-cell relations at the crest-mesoderm interface, are addressed.

PMID:
16313393
[PubMed - indexed for MEDLINE]
PMCID:
PMC1571569
Free PMC Article
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