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   » » Wiki: Pronephric Duct
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The pronephric duct is the predecessor of the (Wolffian duct).


Development
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 to the third , a series of short from each segment grows and extends , 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 it is termed the . Thus, the mesonephric duct remains after the atrophy of the pronephros.


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