This MedLibrary.org supplementary page on Paramesonephric duct is provided directly from the open source Wikipedia as a service to our readers. Please see the note below on authorship of this content, as well as the Wikipedia usage guidelines. To search for other content from our encyclopedia supplement, please use the form below:
Related Sponsors
| Müllerian duct | ||
|---|---|---|
 |
||
| Urogenital sinus of female human embryo of eight and a half to nine weeks old. | ||
 |
||
| Tail end of human embryo, from eight and a half to nine weeks old. | ||
| Latin | d. paramesonephricus | |
| Gray's | subject #252 1206 | |
| Carnegie stage | 17 | |
| Precursor | Intermediate mesoderm | |
| MeSH | Mullerian+Ducts | |
| Dorlands/Elsevier | d_29/12315002 | |
The Müllerian ducts (or paramesonephric ducts) are paired ducts of the embryo which run down the lateral sides of the urogenital ridge and terminate at the mullerian eminence in the primitive urogenital sinus. In the female, it will develop to form the fallopian tubes, uterus, and the upper portion of the vagina. It is tissue of mesodermal origin.
Contents |
Development
Müllerian duct develops in females and degenerates in males.
Regulation of development
The development of the Müllerian ducts is controlled by the presence or absence of "AMH", or Anti-müllerian hormone (also known as "MIF" for "Müllerian inhibiting factor", or "MIH" for "Müllerian inhibiting hormone").
| male embryogenesis | The testes produce AMH and as a result the development of the Müllerian ducts is inhibited. | Disturbances can lead to persistent müllerian duct syndrome. | The ducts disappear except for the vestigial vagina masculina and the appendix testis. |
| female embryogenesis | The absence of AMH results in the development of female reproductive organs, as noted above. | Disturbance in the development may result in uterine absence (Mullerian agenesis) or uterine malformations. | The ducts develop into the upper vagina, cervix, uterus and oviducts. |
Eponym
They are named after Johannes Peter Müller, a physiologist who described these ducts in his text "Bildungsgeschichte der Genitalien" in 1830.
Additional images
 Enlarged view from the front of the left Wolffian body before the establishment of the distinction of sex. |
 Transverse section of human embryo eight and a half to nine weeks old. |
See also
- Defeminization
- prostatic utricle
- List of homologues of the human reproductive system
- Sexual differentiation
- Wolffian duct
External links
|
|||||||||||||||||
Wikipedia content modification information:
- This page was last modified on 21 September 2008, at 22:37.
Wikipedia Authorship and Review
Wikipedia content provided here is not reviewed directly by MedLibrary.org. Wikipedia content is authored by an open community of volunteers and is not produced by or in any way affiliated with MedLibrary.org.
Wikipedia Usage Guidelines
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article on "Paramesonephric duct".
The URL for this specific entry is:
All Wikipedia text is available under the terms of the GNU Free Documentation License. (See Copyrights for details). Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc.