. A laboratory manual and text-book of embryology. Embryology. 246 UROGENITAL SYSTEM first composed of a layer of trophectoderm (of Langhans) with the outlines of its cuboidal cells sharply defined (Fig. 241 A). This layer forms and is covered by a syncytium, the trophoderm. In the later months of pregnancy as the villi. Fig. 239.—Section through a normal placenta of seven months in situ (Minot): Am, amnion; CAo, chorion; Vi, root of villus; vi, sections of small villi ramifying in the intervillous blood spaces; D, deep spongy layer showing remnants of large flattened glands; Ve, uterine vesse


. A laboratory manual and text-book of embryology. Embryology. 246 UROGENITAL SYSTEM first composed of a layer of trophectoderm (of Langhans) with the outlines of its cuboidal cells sharply defined (Fig. 241 A). This layer forms and is covered by a syncytium, the trophoderm. In the later months of pregnancy as the villi. Fig. 239.—Section through a normal placenta of seven months in situ (Minot): Am, amnion; CAo, chorion; Vi, root of villus; vi, sections of small villi ramifying in the intervillous blood spaces; D, deep spongy layer showing remnants of large flattened glands; Ve, uterine vessel opening into intervillous spaces; Mc, muscular wall of 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