EMBRYONIC DEVELOPMENT & STEM CELL COMPENDIUM
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Head Mesenchyme >

Branchial Arch 2


HdM.BA2

Branchial arch 2 is a transient facial anatomical structure which includes: neural crest, mesoderm, endoderm and ectoderm cells. Neural crest progenitor cells from this region will form the hyoid and some of the middle ear bones.


Branchial arch 2 appears as pairs of mesenchymal structures during the fourth and fifth week of human development.

Pharyngeal arch 2 or Hyoid arch
Branchial Arch 2
Multiple Ancestors Single Ancestor No Descendants Develops from Part of Parent
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