At 18-22 weeks post-conception, the female ovary contains its peak number of follicles (about 300,000 in the average case, but individual peak populations range from 35,000 to 2.5 million).
In the human female fetal ovary the maximum number of pachytenes occurs at about 26 weeks, although they appear as early as 14 weeks and continue to about 30 weeks of gestation.
It is produced by the male testicles and the female ovaries.
A Sertoli-Leydig cell tumor is a cancer that starts in the female ovaries, usually in younger women.
This "ovarian-type stroma" is connective tissue that resembles some of the tissue normally found in the female ovary.
Yolk production (vitellogenesis) in female ovaries is also stimulated by JH action.
Recent research, however, has identified that renewable oogonia may be present in the lining of the female ovaries of humans, primates and mice.
Although FS is ubiquitous its highest concentration has been found to be in the female ovary, followed by the skin.
Most Vitis vinifera grape vines are hermaphroditic, with both male stamens and female ovaries, being able to self-pollinate.