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2. Ovary - Wikipedia

   en.wikipedia.org/wiki/Ovary

   At maturity, ovaries secrete estrogen, androgen, [13] [14] inhibin, and progestogen. [15] [16] [2] In women before menopause, 50% of testosterone is produced by the ovaries and released directly into the blood stream. The other 50% of testosterone in the blood stream is made from conversion of the adrenal pre-androgens ( DHEA and ...

3. Estradiol - Wikipedia

   en.wikipedia.org/wiki/Estradiol

   [84] [85] [86] These findings demonstrated the existence of a hormone which is produced by the ovaries and is involved in sexual maturation and reproduction. [ 84 ] [ 85 ] [ 86 ] At the time of its discovery, Allen and Doisy did not name the hormone, and simply referred to it as an "ovarian hormone" or "follicular hormone"; [ 85 ] others ...

4. Menstrual cycle - Wikipedia

   en.wikipedia.org/wiki/Menstrual_cycle

   Menstrual cycle The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that makes pregnancy possible. The ovarian cycle controls the production and release of eggs and the cyclic release of estrogen and progesterone. The uterine cycle governs the preparation and maintenance of the lining of the ...

5. Pregnancy hormones - Wikipedia

   en.wikipedia.org/wiki/Pregnancy_hormones

   Hormones are synthesized in certain organs, including the ovaries, placenta, and pituitary gland. [1] These hormones have essential functions in pregnancy test , maintaining the uterine lining, fetal development, preventing premature labor , and the initiation and support of labor.

6. Folliculogenesis - Wikipedia

   en.wikipedia.org/wiki/Folliculogenesis

   Folliculogenesis is continuous, meaning that at any time the ovary contains follicles in many stages of development. The majority of follicles die and never complete development. A few develop fully to produce a secondary oocyte which is released by rupture of the follicle in a process called ovulation.

7. Human reproductive system - Wikipedia

   en.wikipedia.org/wiki/Human_reproductive_system

   The vagina is attached to the uterus through the cervix, while the uterus is attached to the ovaries via the fallopian tubes. Each ovary contains hundreds of egg cells or ova (singular ovum). Approximately every 28 days, the pituitary gland releases a hormone that stimulates some of the ova to develop and grow. One ovum is released and it ...

8. Ovulation - Wikipedia

   en.wikipedia.org/wiki/Ovulation

   Ovulation is an important part of the menstrual cycle in female vertebrates where the egg cells are released from the ovaries as part of the ovarian cycle. In female humans ovulation typically occurs near the midpoint in the menstrual cycle and after the follicular phase. Ovulation is stimulated by an increase in luteinizing hormone (LH).

9. Follicular phase - Wikipedia

   en.wikipedia.org/wiki/Follicular_phase

   Follicular phase diagram of hormones and their origins Follicle-stimulating hormone (FSH) is secreted by the anterior pituitary gland (Figure 2). FSH secretion begins to rise in the last few days of the previous menstrual cycle, [ 3 ] and is the highest and most important during the first week of the follicular phase [ 4 ] (Figure 1).