. A manual of zoology. Zoology. 628 CHORD ATA. life the arterial trunk, which at first is simple, is divided into a pulmonary artery, arising from the right half of the heart and carrying venous blood, and an aorta ascendens, with arterial blood, connected with the left half. In contrast with the reptiles, the right aortic arCh is entirely lost, the left persisting. The urogenital system is of great importance in the separation of the group into smaller divisions (fig. G51). In both sexes this consists of practically the same parts in early embryonic life. These are the early formed Wolffian b
. A manual of zoology. Zoology. 628 CHORD ATA. life the arterial trunk, which at first is simple, is divided into a pulmonary artery, arising from the right half of the heart and carrying venous blood, and an aorta ascendens, with arterial blood, connected with the left half. In contrast with the reptiles, the right aortic arCh is entirely lost, the left persisting. The urogenital system is of great importance in the separation of the group into smaller divisions (fig. G51). In both sexes this consists of practically the same parts in early embryonic life. These are the early formed Wolffian body (W); the permanent kidneys, which appear later and are not shown in the diagram;. 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 Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1902
