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Wolffian duct

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Urogenital sinus of female human embryo of eight and a half to nine weeks old. |- style="text-align: center;" class="hiddenStructure" | colspan="2" |

|- style="text-align: center; line-height: 1;" class="hiddenStructure" | colspan="2" |Transverse section of a chick embryo of forty-five hours’ incubation. |- class="hiddenStructure" |Latin |colspan="2"|d. mesonephricus, d. Wolffi |- class="hiddenStructure" | |colspan="2"|[subject #252 ] |- class="hiddenStructure" |System |colspan="2"| |- class="hiddenStructure" |Carnegie stage |colspan="2"|[11] |- class="hiddenStructure" |Days |colspan="2"| |- class="hiddenStructure" |Precursor |colspan="2"|intermediate mesoderm |- class="hiddenStructure" |Gives rise to |colspan="2"| |- class="hiddenStructure" |MeSH |colspan="2"|[] |- class="hiddenStructure" |Dorlands/Elsevier |colspan="2"|[d_29/12314957] |} The Wolffian duct (also known as archinephric duct, Leydig's duct, mesonephric duct, or nephric duct) is a paired organ found in mammals including humans during embryogenesis.

It connects the primitive kidney Wolffian body (or mesonephros) to the cloaca and serves as the anlage for certain male reproductive organs.

Male anatomy

In a male, it develops into a system of connected organs between the testis and the prostate, namely the rete testis, the efferent ducts, the epididymis, the vas deferens, the seminal vesicle, and the prostate.

For this it is critical that the ducts are exposed to testosterone during embryogenesis.

In the mature male, the function of this system is to store and mature sperm, and provide accessory semen fluid.

Female anatomy

In the female, in the absence of testosterone support, the Wolffian ducts do not develop and wither.

As a residual the epoophoron may be present. Also, lateral to the wall of the vagina a Gartner's duct or cyst could develop as a remnant.

History

It is named after Caspar Friedrich Wolff who described the mesonephros and its ducts in his dissertation in 1759.

See also

Embryology: Wolffian duct

Mammalian embryogenesis/Embryology and Fetal development - [http://encycl.opentopia.com/ edit]

Embryo/Carnegie stages: Zygote | Morula | Blastula/Blastomere/Blastosphere | Gastrula/Gastrulation | Neurula | Fetus

General: Archenteron | Blastopore | Hensen's node | Germ layer (Ectoderm, Endoderm, Mesoderm) | Histogenesis | Organogenesis | Branchial arch (1st) | Meckel's cartilage | Somite/Somitomere | Thyroglossal duct | Vitelline duct

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 | Neural folds | Neural groove | Neural tube | Neural crest | Neuromere | 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)

Uterine support: Placenta | Umbilical cord (Umbilical artery, Umbilical vein, Wharton's jelly) | Amniotic sac (Amnion, Chorion) | Yolk sac | Allantois | Trophoblast (Cytotrophoblast | Syncytiotrophoblast | Gestational sac)

 


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