. A laboratory manual and text-book of embryology. Embryology. THE GENITAL GLANDS AND DUCTS—UTERUS 227 the caudal ends of the Muellerian ducts, which are pressed close together between the mesonephric ducts in the genital cord, fuse, and in both male and female em- bryos of 20 to 30 mm. give rise to the unpaired anlage of the uterus and vagina (Fig. 224 A). The utero-vaginal anlage of the male remains rudimentary. The uterine portion of the anlage degenerates with the paired portions of the Muel- lerian ducts. The vaginal portion remains as the vagina masculina, and the extreme cranial end of
. A laboratory manual and text-book of embryology. Embryology. THE GENITAL GLANDS AND DUCTS—UTERUS 227 the caudal ends of the Muellerian ducts, which are pressed close together between the mesonephric ducts in the genital cord, fuse, and in both male and female em- bryos of 20 to 30 mm. give rise to the unpaired anlage of the uterus and vagina (Fig. 224 A). The utero-vaginal anlage of the male remains rudimentary. The uterine portion of the anlage degenerates with the paired portions of the Muel- lerian ducts. The vaginal portion remains as the vagina masculina, and the extreme cranial end of each Muellerian duct persists as the appendix testis. As pointed out by Felix, the term "uterus masculinus" as applied to the remains of the utero vaginal anlage is a misnomer, for the vaginal portion of the anlage persists and its uterine portion degenerates. Uterus and Vagina.—Since the Muellerian ducts develop in the urogenital folds, they make two bends in their course corresponding to those of the folds Ctrf/\ Uteri Va,. Uterine tube Fundus of Uterus Found- Ligament nor/'zonfal portion of Uterine tube. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Prentiss, Charles William, 1874-1915. Philadelphia, London, W. B. Saunders
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectembryology, bookyear1
