File:Gray1109.jpg

Urogenital Sinus of Female Human Embryo of 8.5 to 9 weeks old

(From model by Keibel)

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Pages where the terms "Historic Textbook" and "Historic Embryology" appear on this site, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the interpretation of developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these interpretations may not reflect our current scientific understanding. (More? Embryology History)

The Müllerian Ducts (Paramesonephric Ducts)

• Shortly after the formation of the Wolffian ducts a second pair of ducts is developed, the Müllerian ducts
• Each arises on the lateral aspect of the corresponding Wolffian duct as a tubular invagination of the cells lining the coelom
• orifice of the invagination remains patent, and undergoes enlargement and modification to form the abdominal ostium of the uterine tube
• ducts pass backward lateral to the Wolffian ducts
  • toward the posterior end of the embryo they cross to the medial side of these ducts
  • come to lie side by side between and behind the latter
• the four ducts forming what is termed the genital cord
• Müllerian ducts end in an epithelial elevation, the Müllerian eminence
  • on the ventral part of the cloaca between the orifices of the Wolffian duct
  • at a later date they open into the cloaca in this situation

(Text modified from Gray's Anatomy)

Gray's Images: Development | Lymphatic | Neural | Vision | Hearing | Somatosensory | Integumentary | Respiratory | Gastrointestinal | Urogenital | Endocrine | Surface Anatomy | iBook | Historic Disclaimer

Historic Disclaimer - information about historic embryology pages

Pages where the terms "Historic Textbook" and "Historic Embryology" appear on this site, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the interpretation of developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these interpretations may not reflect our current scientific understanding. (More? Embryology History)

Links: Gray's Anatomy Images

Reference: Gray, Henry. Anatomy of the Human Body. Philadelphia: Lea & Febiger, 1918.

iBook - Gray's Embryology

iTunes link | iBooks Store Description - an extract of the embryology content from Anatomy of the Human Body By Henry Gray Philadelphia: Lea & Febiger, 1918. Releases First Edition - Jan 2012 Second Edition - March 2012 Repaired formatting and image display issues related to Pad rotated display and minor editing issues. Print length 169 pages, 41.6 MB, Language English. The current website also includes numerous images from this textbook, see Anatomy of the Human Body by Henry Gray and Category:Gray's 1918 Anatomy. Note the also Historic Disclaimer.