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pharyngeal pouches

 

Definition: paired evaginations of embryonic pharyngeal endoderm, between the pharyngeal arches, extending toward the corresponding ectodermally lined pharyngeal grooves; during development they evolve into epithelial tissues and organs, such as thymus and thyroid glands.

Synonym(s): branchial pouches, endodermal pouches

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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