Sgi

Uterorectal Pouch

Ovary \

Paramesonephric duct

Uterorectal pouch

Ovary \

Paramesonephric duct

Uterorectal pouch

duct Broad

Fused ligament paramesonephric of uterus ducts I

Uterovesical pouch

duct Broad

Fused ligament paramesonephric of uterus ducts I

Uterovesical pouch

Figure 14.28 Transverse sections through the urogenital ridge at progressively lower levels. A. and B. The paramesonephric ducts approach each other in the midline and fuse. C. As a result of fusion, a transverse fold, the broad ligament of the uterus, forms in the pelvis. The gonads come to lie at the posterior aspect of the transverse fold.

to form the uterine canal. When the second part of the paramesonephric ducts moves mediocaudally, the urogenital ridges gradually come to lie in a transverse plane (Fig. 14.28, A and B). After the ducts fuse in the midline, a broad transverse pelvic fold is established (Fig. 14.28C). This fold, which extends from the lateral sides of the fused paramesonephric ducts toward the wall of the pelvis, is the broad ligament of the uterus. The uterine tube lies in its upper border, and the ovary lies on its posterior surface (Fig. 14.28C). The uterus and broad ligaments divide the pelvic cavity into the uterorectal pouch and the uterovesical pouch. The fused paramesonephric ducts give rise to the corpus and cervix of the uterus. They are surrounded by a layer of mesenchyme that forms the muscular coat of the uterus, the myometrium, and its peritoneal covering, the perimetrium.

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Responses

  • Debora Schiavone
    What is uterorectal pouch?
    8 years ago

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