Intermediate mesoderm

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Embryology: Intermediate mesoderm
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".
[[Image:|250px|center|]]
Latin	'
Gray's	subject #6 50
System
Carnegie stage	[1]
Days	{{{Days}}}
Precursor
Gives rise to	Wolffian duct
MeSH	[2]
Dorlands/Elsevier	/

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.

[edit] External links

• Embryology at UNC genital-002

• Diagram at lww.com
• Overview at nih.gov

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 As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

Mammalian development of embryo and development and fetus (some dates are approximate - see Carnegie stages) - edit
Week 1: Zygote | Morula | Blastula/Blastomere/Blastosphere | Archenteron/Primitive streak | Blastopore | Allantois | Trophoblast (Cytotrophoblast | Syncytiotrophoblast | Gestational sac) Week 2: Yolk sac | Vitelline duct | Bilaminar disc Week 3: Hensen's node | Gastrula/Gastrulation | Trilaminar embryo Branchial arch (1st) | Branchial pouch | Meckel's cartilage | Somite/Somitomere | Germ layer (Ectoderm, Endoderm, Mesoderm, Chordamesoderm, Paraxial mesoderm, Intermediate mesoderm, Lateral plate mesoderm)
Histogenesis and Organogenesis
Circulatory system: Primitive atrium | Primitive ventricle | Bulbus cordis | Truncus arteriosus | Ostium primum | Foramen ovale | Ductus venosus | Ductus arteriosus | Aortic arches | Septum primum | Septum secundum | Cardinal veins Nervous system: Neural development/Neurulation | Neurula | Neural folds | Neural groove | Neural tube | Neural crest | Neuromere (Rhombomere) | Notochord | Optic vesicles | Optic stalk | Optic cup Digestive system: Foregut | Midgut | Hindgut | Proctodeum | Rathke's pouch | Septum transversum Urinary/Reproductive system: Urogenital folds | Urethral groove | Urogenital sinus | Kidney development (Pronephros | Mesonephros | Ureteric bud | Metanephric blastema) | Fetal genital development (Wolffian duct | Müllerian duct | Gubernaculum | Labioscrotal folds) Glands: Thyroglossal duct Uterine support: Placenta | Umbilical cord (Umbilical artery, Umbilical vein, Wharton's jelly) | Amniotic sac (Amnion, Chorion)

This page uses content from the English-language version of Wikipedia. The original article was at Intermediate mesoderm. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License.