<unk>  is the process in the menstrual cycle by which a mature<unk> arian follicle ruptures and discharges an<unk> um (also known as an oocyte, female gamete, or casually, an egg) that participates in reproduction.<unk>  also occurs in the estrous cycle of other animals, which differs in many fundamental ways from the menstrual cycle.
The  process of<unk>  is controlled by the hypothalamus of the brain and through the release of hormones secreted in the anterior lobe of the pituitary gland, (Luteinizing hormone (LH) and Follicle-stimulating hormone (FSH)).  In the follicular (pre-ovulatory) phase of the menstrual cycle, the<unk> arian follicle will undergo a series of transformations called cumulus expansion, this is stimulated by the secretion of FSH.  After this is done, a hole called the stigma will form in the follicle, and the<unk> um will leave the follicle through this hole.<unk>  is triggered by a spike in the amount of FSH and LH released from the pituitary gland. During the luteal (post-ovulatory) phase, the<unk> um will travel through the fallopian tubes toward the uterus. If fertilized by a sperm, it may perform implantation there 6-12 days later. If not fertilized, it will be degraded in the fallopian tubes within 24 hours.
In humans, the few days near<unk>  constitute the fertile phase.  The average time of<unk>  is the fourteenth day of an average length (twenty-eight day) menstrual cycle.  It is normal for the day of<unk>  to vary from the average, with<unk>  anywhere between the tenth and nineteenth day being common.
Cycle length alone is not a reliable indicator of the day of<unk> .  While in general an earlier<unk>  will result in a shorter menstrual cycle, and vice versa, the luteal (post-ovulatory) phase of the menstrual cycle may vary by up to a week between women.
Ovulation
Ejaculation
Lactation
Fertility
Menstrual cycle
Andropause
Spermatogenesis
Penile discharge