. The elements of experimental embryology. Embryology, Experimental; Embryology. CLEAVAGE AND DIFFERENTIATION 95 yolk is left near the surface, and this interferes with the process of gastrulation. The lip of the blastopore becomes as it were split on this obstacle, and invagination takes place in opposite directions, away from the streak of yolk. In other cases, the blastocoel is dis- placed, and it seems that the pressure within it causes the cells which form its wall to present an obstacle on which the blastopore lip 'X^/i. Please note that these images are extracted from scanned page image
. The elements of experimental embryology. Embryology, Experimental; Embryology. CLEAVAGE AND DIFFERENTIATION 95 yolk is left near the surface, and this interferes with the process of gastrulation. The lip of the blastopore becomes as it were split on this obstacle, and invagination takes place in opposite directions, away from the streak of yolk. In other cases, the blastocoel is dis- placed, and it seems that the pressure within it causes the cells which form its wall to present an obstacle on which the blastopore lip 'X^/i. 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 Huxley, Julian, 1887-1975; De Beer, Gavin, Sir, 1899-1972. New York [Hafner Pub. Co. ]
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Keywords: ., bookcentury1900, bookcollectionbiodiversi, booksubjectembryology
