mesonephric duct
Quick Summary
The mesonephric duct, also known as the Wolffian duct, is a embryonic duct that plays a role in the development of both the urinary and reproductive systems. In embryonic vertebrates, it serves as a tube carrying urine from the mesonephros (an intermediate kidney) to the cloaca, which is a common outlet for waste.1234
In males, the mesonephric duct persists and develops into the male reproductive system, including the epididymis and vas deferens. In females, a separate set of ducts, the paramesonephric (or Müllerian) ducts, develop alongside the mesonephric ducts. While the mesonephric ducts largely degenerate in females, they can form vestigial organs. The mesonephric duct is essential for the development of the mesonephros, which functions as the primary kidney in fish and amphibian larvae, and in the embryos of reptiles, birds, and mammals.12564
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
animal reproductive systemDucts…to the embryo, but the mesonephric duct persists in the adult male as a sperm duct. A separate ureter drains the adult kidney. The spermatic and urinary ducts empty independently into the cloaca except in mammals above monotremes, in which they are confluent with the urethra. The epididymis of amniotes,…
Read More…to the embryo, but the mesonephric duct persists in the adult male as a sperm duct. A separate ureter drains the adult kidney. The spermatic and urinary ducts empty independently into the cloaca except in mammals above monotremes, in which they are confluent with the urethra. The epididymis of amniotes,…
Read More
human reproductive systemDevelopment of the reproductive organsIn males each mesonephric duct becomes differentiated into four related structures: a duct of the epididymis, a ductus deferens, an ejaculatory duct, and a seminal vesicle. In females the mesonephric ducts are largely suppressed. The other two ducts, called the paramesonephric or müllerian ducts, persist, in females, to…
Read MoreIn males each mesonephric duct becomes differentiated into four related structures: a duct of the epididymis, a ductus deferens, an ejaculatory duct, and a seminal vesicle. In females the mesonephric ducts are largely suppressed. The other two ducts, called the paramesonephric or müllerian ducts, persist, in females, to…
Read More
