Ovulation

Definition

Ovulation is the release of an egg from one of a woman's ovaries, typically occurring around the midpoint of the menstrual cycle. This process is crucial for natural conception as it provides an egg for potential fertilization by sperm.

5 Must Know Facts For Your Next Test

1. Ovulation generally occurs around day 14 of a typical 28-day menstrual cycle.
2. A surge in luteinizing hormone (LH) triggers ovulation.
3. The egg released during ovulation can be fertilized for about 12 to 24 hours after release.
4. Signs of ovulation can include mild pelvic or lower abdominal pain, changes in cervical mucus, and slight increases in basal body temperature.
5. Ovulation is essential for sexual reproduction and marks the fertile window when pregnancy is most likely to occur.

Review Questions

• What hormonal change triggers ovulation?
• How long does an egg remain viable for fertilization after being released during ovulation?
• What are some common signs that indicate a woman is ovulating?

Related terms

Menstrual Cycle: A monthly cycle of changes in the ovaries and lining of the uterus, culminating in menstruation if no pregnancy occurs.

Luteinizing Hormone (LH): A hormone that plays a key role in regulating the function of the ovaries and testes, triggering ovulation in women.

Follicle-Stimulating Hormone (FSH): A hormone involved in the growth and maturation of ovarian follicles before ovulation.