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This article may be confusing or unclear to readers. Please help clarify the article; suggestions may be found on the talk page. (December 2008) |
| Intermediate mesoderm | |
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| 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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| Gray's | subject #6 50 |
| Gives rise to | Wolffian duct |
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
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated.
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