entoderm

How To Use entoderm In A Sentence

• The outline of the enteron is here almost a vertical slit, and the lining entoderm consists, in its dorsal and lateral regions, of a single layer of columnar epithelium, while in its ventral region, where it adjoins the liver trabeculae, it is made up of several layers of cuboidal or irregular cells. Development of the Digestive Canal of the American Alligator
• A cell mass is first produced, and the cells in this differentiate into three layers called ectoderm, entoderm and mesoderm, from which the external and internal surfaces and the enclosed tissues respectively develop, and the different organs are produced by growth of the cells of certain areas of these layers. Disease and Its Causes
• The lateral mesoderm splits into two layers, an outer or somatic, which becomes applied to the inner surface of the ectoderm, and with it forms the somatopleure; and an inner or splanchnic, which adheres to the entoderm, and with it forms the splanchnopleure (Fig. 16). I. Embryology. 5. Segmentation of the Fertilized Ovum
• The inner layer we call the entoderm, the outer the ectoderm; and the "primitive mouth" is known as the blastopore. The World's Greatest Books — Volume 15 — Science
• The terms ectoderm and entoderm were introduced by Allman [330] in 1853 for the two cell-layers in the Hydrozoa. Form and Function A Contribution to the History of Animal Morphology
• A sagittal section of approximately this stage, shown in figure 1A, represents the foregut, _fg_, as a shallow enclosure of the anterior region of the entoderm, while the wide blastopore, _blp_, connects the region of the hindgut with the exterior. Development of the Digestive Canal of the American Alligator
• The nuclei in the dorsal and lateral regions of the entoderm are arranged in a very definite layer at the basal ends of the cells, though an occasional nucleus may be seen near the center of the layer. Development of the Digestive Canal of the American Alligator
• Finally, the entoderm first forms a broad open gutter, which is shaped like a trough. Hans Spemann - Nobel Lecture
• B longitudinal section through the axis, g primitive-gut cavity, a primitive mouth-aperture, i inner cell-layer (entoderm, endoblast, gut-layer), e external cell-layer (outer germinal layer, ectoderm, ectoblast, or skin-layer). The Evolution of Man — Volume 1
• The foregut is here more inclosed, and the notochord, _nt_, having separated from the entoderm, _en_, is seen as a distinct layer of cells extending from the foregut to the blastopore. Development of the Digestive Canal of the American Alligator