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Branchial pouch
In the development of vertebrate animals, Pharyngeal or branchial pouches form on the endodermal side between the branchial arches, and pharyngeal grooves (or clefts) form from the lateral ectodermal surface of the neck region to separate the arches. The pouches line up with the clefts, and these thin segments become gills in fish. Additional recommended knowledge
The pouchesFirst pouchThis is the only pouch in which the endoderm and ectoderm remain close together, as the tympanic membrane. There is minimal mesoderm in the tympanic membrane.
Second pouch
Third pouch
Fourth pouch
Fifth pouch
See also
Categories: Developmental biology | Embryology | Head and neck |
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Branchial_pouch". A list of authors is available in Wikipedia. |