Documents (66)
| source DB | source ID | text | # proj. | # Ann. | |
|---|---|---|---|---|---|
| GrayAnatomy | 11 | The yolk-sac (Figs. 22 and 23) is situated on the ventral aspect of the embryo; it is lined by entod | 2 | 36 | |
| GrayAnatomy | 10 | The embryo increases rapidly in size, but the circumference of the embryonic disk, or line of meetin | 2 | 39 | |
| GrayAnatomy | 5 | Fertilization consists in the union of the spermatozoön with the mature ovum (Fig. 8). Nothing is kn | 2 | 43 | |
| GrayAnatomy | 8 | The notochord (Fig. 19) consists of a rod of cells situated on the ventral aspect of the neural tube | 2 | 33 | |
| GrayAnatomy | 7 | In front of the primitive streak two longitudinal ridges, caused by a folding up of the ectoderm, ma | 2 | 71 | |
| GrayAnatomy | 15 | —It is during this month that the first movements of the fetus are usually observed. The eruption of | 2 | 38 | |
| GrayAnatomy | 12 | In reptiles, birds, and many mammals the allantois becomes expanded into a vesicle which projects in | 2 | 460 | |
| GrayAnatomy | 23 | (Vertebræ Lumbales).The lumbar vertebræ (Figs. 92 and 93) are the largest segments of the movable pa | 2 | 142 | |
| GrayAnatomy | 19 | (Columna Vertebralis; Spinal Column).The vertebral column is a flexuous and flexible column, formed | 2 | 46 | |
| GrayAnatomy | 9 | Toward the end of the second week transverse segmentation of the paraxial mesoderm begins, and it is | 2 | 19 |