. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. THE OVUM OF THE NINE-BANDED ARMADILLO. Ill obstructions such as older follicles or dense masses of stroma cells. The average diameter of the less distorted definitive follicles is about I mm. Stage 12 (Fig. 12}.—The conditions shown in this figure are readily recognized as those typical of follicles shortly after the onset of follicular atresia. The characteristic symptoms of this. 12 FIG. ii. A definitive follicle with maturing ovocyte located in the mound-like discus proligerus. The lumen is filled with a clear fluid. A me
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. THE OVUM OF THE NINE-BANDED ARMADILLO. Ill obstructions such as older follicles or dense masses of stroma cells. The average diameter of the less distorted definitive follicles is about I mm. Stage 12 (Fig. 12}.—The conditions shown in this figure are readily recognized as those typical of follicles shortly after the onset of follicular atresia. The characteristic symptoms of this. 12 FIG. ii. A definitive follicle with maturing ovocyte located in the mound-like discus proligerus. The lumen is filled with a clear fluid. A membranous capsule composed of stroma cells surrounds the follicular wall (Xso). FIG. 12. A follicle fully mature and entering upon process of follicular atresia. The cells of the discus proligerus and of the wall surrounding the lumen are be- ginning to disintegrate and to wander into the lumen (X5o). process are seen in the less deeply stained follicle cells and in the tendency of the latter to wander into the lumen. Such follicles frequently show a slight or marked diminution in size, due probably to a resorption of the follicular fluid. It is in such follicles that one finds the completion of the second maturation division, a process which does not normally take place until after ovulation. In referring stages in the development of the ovocyte or nucleus to their appropriate follicular stages it will be convenient to remember that the first twelve figures have numbers corre- sponding to the twelve stages of follicular development; hence it will be necessary to refer only to stage 4, 7 or 10, with the understanding that these stages are illustrated in Figs. 4, 7 and 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 H
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
