. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ,V2. Figure 5. Sketches of a fully formed infusoriform embryo. Scale bar = 10 nm. a. Dorsal view. b. Ventral view. c. Lateral view. d. Sagittal optical section. Enveloping cells are not depicted. Cilia are omitted in a, b, and c. r = refringent body. occupy the dorsal and caudal surfaces of the embryo, are ciliated and are derived from the hlastomeres of the animal hemisphere of the embryo, and the inner cells are derived from the blastomeres of the vegetal hemisphere. The in- nermost germinal cells are derived from the cell
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ,V2. Figure 5. Sketches of a fully formed infusoriform embryo. Scale bar = 10 nm. a. Dorsal view. b. Ventral view. c. Lateral view. d. Sagittal optical section. Enveloping cells are not depicted. Cilia are omitted in a, b, and c. r = refringent body. occupy the dorsal and caudal surfaces of the embryo, are ciliated and are derived from the hlastomeres of the animal hemisphere of the embryo, and the inner cells are derived from the blastomeres of the vegetal hemisphere. The in- nermost germinal cells are derived from the cells that form the vegetal pole. These processes of cellular rearrangement are observed in many other groups of animals and appear to represent the basic pattern of the early development of animals. It is also apparent that the outer ciliated cells differentiate much earlier than the inner cells, with the exception of the germinal cells (Fig. 6 and Table I). In infusoriform embryos, the cells of the vegetal hemi- sphere are apparently incorporated passively into the inte- rior of the embryo as the cells of the animal hemisphere. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
Size: 1474px × 1695px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
