. Comparative embryology of the vertebrates; with 2057 drawings and photos. grouped as 380 illus. Vertebrates -- Embryology; Comparative embryology. VITELLINE VEIN. YOLK sue WA 'â .\ -râ VITELLINE ARTERY '\\\\' ,'_ DUCT FROM YOLK SAC TO INTESTINE UTERINE WALL GLAND LUMEN ALLANTOIC ARTER 6ELLY STALK ALLANTOIC VEIN. Fio. 373. Placental relationships. (A) Placenta of Mustelus laevis. This is a yolk- sac placenta, and the yolk sac tissues burrow into the wall of the uterus, invading the uterine glands. It does not erode the endometrium, however, and therefore resembles the placental conditions in
. Comparative embryology of the vertebrates; with 2057 drawings and photos. grouped as 380 illus. Vertebrates -- Embryology; Comparative embryology. VITELLINE VEIN. YOLK sue WA 'â .\ -râ VITELLINE ARTERY '\\\\' ,'_ DUCT FROM YOLK SAC TO INTESTINE UTERINE WALL GLAND LUMEN ALLANTOIC ARTER 6ELLY STALK ALLANTOIC VEIN. Fio. 373. Placental relationships. (A) Placenta of Mustelus laevis. This is a yolk- sac placenta, and the yolk sac tissues burrow into the wall of the uterus, invading the uterine glands. It does not erode the endometrium, however, and therefore resembles the placental conditions in the pig, shown in fig. 373B. It is essentially an epithelio-chorial type of placenta. (Redrawn from Needham, 1942, Biochemistry and Morphogenesis, Cambridge University Press, London.) (B) Placental relationships in the pig. The 913. 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 Nelsen, Olin E. (Olin Everett), b. 1898. New York, Blakiston
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
