Intermediate mesoderm

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Caption = Transverse section of a chick embryo of forty-five hours’ incubation.
* "Chordamesoderm:" yellow, at notochord.
* "Paraxial mesoderm:" red, at somite.
* "Intermediate mesoderm:" purple, near Wolffian duct.
* "Lateral plate mesoderm:" purple, including "Somatic mesoderm" and "Splanchic mesoderm".


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Intermediate mesoderm is a type of mesoderm that is located between the paraxial mesoderm and the lateral plate.

It develops into the part of the urogenital system (kidneys and gonads)

* forms of urogenital system
* series of short evaginations from each segment grows dorsally caudally
* vestiges of the future kidney, the pronephros briefly appears.
* pronephric duct arises in the intermediate mesoderm just ventral to the anterior somites
* grows caudally until it becomes the cloaca.
*it is distinct from the lateral mesoderm, as it is not influenced by the secretion of BMP-4 by the ectoderm, possibly due to the lack of receptors.

External links

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* [http://connection.lww.com/Products/sadler/images/figurelarge5-9.jpgDiagram at lww.com]
* [http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=dbio.section.3498 Overview at nih.gov]