File:Long1911 plate06.jpg

Plate 6

Figs. 32-37. First polar cells from oviducal eggs which contain the second spindle. They form a series of steps which illustrate the degeneration of the first polar cell. Figs. 32 and 33 are of polar cells which have divided into two or more parts. X (2500) 2000. Figs. 38-40. Three stages in the process of ovulation. In all three cases the egg contains the second spindle and is accompanied by the first polar cell. X(i7o) 136.

Note. A minute body appearing in the clear space between zona pellucida and vitellus in fig. 38 is due to a defect in the plate.

Historic Disclaimer - information about historic embryology pages

Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)

Links: Plate A | Fig. D | Fig. E | Fig. F | Fig. H | Fig. I | Fig. J | Table 1 | Table 2 | Table 3 | Table 4 | Table 5 | Table 6 | Plate 1 | Plate 2 | Plate 3 | Plate 4 | Plate 5 | Plate 6 | Contribution No.142 | Mouse Development