Pronephric duct

The pronephric duct is the predecessor of the mesonephric duct (Wolffian duct).

Pronephric duct
Precursorintermediate mesoderm
Gives rise toMesonephric duct
Latinductus pronephricus
Anatomical terminology


The development of the pronephric duct is a part of the development of the urinary system, and the development of the reproductive system.

In the outer part of the intermediate mesoderm, immediately under the ectoderm, in the region from the fifth cervical segment to the third thoracic segment, a series of short evaginations from each segment grows dorsally and extends caudally, fusing successively from before backward to form the pronephric duct. This continues to grow caudalward until it opens into the ventral part of the cloaca; beyond the pronephros it is termed the mesonephric duct. Thus, the mesonephric duct remains after the atrophy of the pronephros.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.