Template:Pincus1935 table 1

From Embryology
Table 1 - Progressive Changes in Maturing Ovarian Eggs during the Time Interval between Capulaticm and Ovulation
Time elapsed since copulation (hrs.) No. of cases observed Condition of the egg Condition of the follicles
0 10 Egg fully grown. Nucleus vesicular, in some cases vesicular tetrads present Average diameter 970 um. The follicular epithelium forms a spider web. In some cases the egg is in a cumulus
2 9 The vesicular nucleus present in most cases. In all cases tetrads present Spider web arrangement of granulosa. Liquor folliculi increasing in amount. Disintegration of follicle cells adjacent to

corona begins

4 7 Vesicular membranes have disappeared. Only traces present. Tetrads free in cytoplasm type Average diameter 1045 um. Follicular epithelium changing from spider web to cumulus
6 6 Chromatic material decreases very much in size and forms the first spindle. No trace of nuclear membrane left Most follicles in cumulus type. The liquor folliculi becomes increasingly viscous
7 4 First polar body extruded in many cases. The remaining chromatin moves sideways As in preceding type
8 10 First polar body present in all cases Average diameter 1125 um
9 4 First polar body present. Second spindle in place and ready to form the second polar body Average diameter 1310 um. Egg almost free in follicle