The process of the ovary expelling an ovum in preparation for fertilization takes place approximately once every 28 days or once during the menstrual cycle during the reproductive years of the female.
Release of a mature egg (ovum) from a woman’s ovaries into the fallopian tubes, where fertilization may take place. Ovulation generally occurs monthly, as a key part of the menstrual cycle, but regular menstruation does not necessarily mean a woman is ovulating. Especially during puberty and approaching menopause, a woman may have anovulatory (without ovulation) periods. If a couple and their doctor are exploring possible infertility, one of the earliest questions to determine is whether or not ovulation is actually taking place. At about the time of ovulation, the body’s temperature rises slightly, the nature of the mucus at the cervix changes, and the woman sometimes experiences slight abdominal pain (called Mittelschmerz). These signs are used in some types of birth control in which couples avoid intercourse between ovulation and menstruation. Conversely, they are used by prospective parents to identify when the chances of conception are the greatest.
Expulsion of an ovum (egg) from the ovary after the rupture of a Graafian follicle in the ovary under the influence of pituitary and ovarian hormones. Ovulation typically occurs midway in the menstrual cycle, 14 days after the first day of the last menstrual period, and is sometimes marked by a sharp pain in the lower abdomen on the side of the ovulation ovary.
The process by which a mature egg is released from an ovary into the fallopian tube, through which it , travels to the uterus. Ovulation takes place during a woman’s reproductive years at around day 15 of the 28-day menstrual cycle. If fertilized by a sperm, the egg may be implanted in the wall of the uterus and produce a pregnancy.
The process by which an ovum is released from a mature Graafian follicle. The fluid-filled follicle distends the surface of the ovary until a thin spot breaks down and the ovum floats out surrounded by a cluster of follicle cells (the cumulus oophoricus) and starts to travel down the fallopian tube to the womb. Ovulation is stimulated by the secretion of ‘luteinizing hormone by the anterior pituitary gland.
The development and release of an ovum (egg) from the ovary into the fallopian tubes. Ovulation is initiated by the secretion of luteinizing hormone by the anterior pituitary gland and occurs half way through the menstrual cycle. If the ovum is not fertilized, it is lost during menstruation.
The periodic ripening and rupture of the mature graafian follicle and the discharge of the ovum from the cortex of the ovary. Under the influence of follicle-stimulating hormone secreted by the anterior pituitary, the follicle matures. The enlarging and maturing follicle causes a slight protrusion of the ovarian surface. Final follicular maturation and rupture occur in response to a sudden surge of luteinizing hormone. The ovum is expelled, captured by the fimbriae, and guided into the fallopian tube. Rapid changes occur in the ruptured follicle as it becomes the corpus luteum and secretes large amounts of progesterone. In the absence of fertilization, the corpus luteum degenerates within about a week, forming a fibrous scar known as corpus albicans.
The process in which the ovaries release a mature egg every month.
The regular release of an egg (or ovum) from the ovaries, which roughly occurs monthly except during pregnancy, beginning soon after menstrual periods start (menarche) until after menopause.
The release of an egg from an ovary. This cycle usually occurs once a month in most women.
The stage within the monthly reproductive cycle of females wherein a mature egg is released from the ovary and travels through the fallopian tube, potentially available for fertilization.
The process and discharge of an ovum (egg, the female reproductive cell) from a follicle situated in an ovary. In the initial phase of the menstrual cycle, follicle-stimulating hormone (FSH) stimulates the maturation of multiple ova within the ovary. Around the middle of the cycle, luteinizing hormone (LH) triggers the release of a mature ovum, which holds the potential for fertilization.
Indicators of ovulation encompass an increase in body temperature, alterations in the texture of cervical mucus, and occasionally, slight abdominal discomfort. Following ovulation, a yellow tissue mass called the corpus luteum forms from the follicle and subsequently releases progesterone during the latter half of the cycle.
Subsequent to the ovum’s release, it journeys through the fallopian tube, and unless fertilization takes place, it undergoes swift degeneration. Consistent menstruation generally indicates ongoing ovulation, with exceptions occurring during puberty and as menopause approaches.
The release of an egg from the ovary.