. Elementary text-book of zoology. Zoology. THE GENERATIVE ORGANS. 293 varies greatly in its form, and lies retracted in a reduplication of the skin (foreskin or prepuce] which is richly glandular (yl. Tifsoniance). Female sexual organs. The ovaries (fig. 678) are unsymmetrical only in the Monotremata, in consequence of the reduction of the right ovary. In all other cases they are equally developed on either side ; they are placed in folds of the peritoneum, close to the funnel-shaped dilated mouths of the oviducts, by which they are sometimes com-. FIG. 678.—Female generative organs, a, of Or
. Elementary text-book of zoology. Zoology. THE GENERATIVE ORGANS. 293 varies greatly in its form, and lies retracted in a reduplication of the skin (foreskin or prepuce] which is richly glandular (yl. Tifsoniance). Female sexual organs. The ovaries (fig. 678) are unsymmetrical only in the Monotremata, in consequence of the reduction of the right ovary. In all other cases they are equally developed on either side ; they are placed in folds of the peritoneum, close to the funnel-shaped dilated mouths of the oviducts, by which they are sometimes com-. FIG. 678.—Female generative organs, a, of Ornithorhynchus (after Owen); b, of Viverra genetta ; e, of Cercoplthecus iiemegtrlniis ; Ov, Ovary ; T, Oviduct; U, Uterus ; V, Vagina ; H, Urinary bladder; Ur, Ureter; M, Mouth of Uterus ; F, opening of Ureter; St urogenital Sinus; Kl, Cloaca; D, Intestine. A style is passed through the opening of the latter into the Cloaca. pletely surrounded. The oviduct is divided into the Fallopian tube, which is always paired and begins with a free ostium ; the dilated ? sometimes paired, more frequently unpaired, middle portion—the uterus; and the terminal part, or vagina, which is unpaired, except in Marsupials, and opens behind the opening of the urethra into the .short urogenital sinus, or vestibule. In the Monotremata the two tubular uteri open, without forming a vagina, on papilliform prominences into the urogenital sinus, which is still connected with the cloaca (fig. 678 a). According to the different degrees of duplicity of the uterus. 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 Claus, Carl, 1835-1899; Sedgwick, Adam, 1854-1913; Sinclair, F. G. (Frederick Granville), b. 1858. New York : Macmillan
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884
