Approximately how long after the LH surge does ovulation occur in a normal menstrual cycle?

Approximately how long after the LH surge does ovulation occur in a normal menstrual cycle?

• A. Menstruation
• B. Ovulation
• C. Ovum fertilization
• D. Corpus luteum regression

Answer: (B)

LH surge prompts the release of the egg from the dominant follicle, and this ovulation typically occurs about 24 hours after that surge. In a normal cycle, the LH peak triggers the follicle to rupture and release the oocyte, making ovulation the event that follows the LH rise. Menstruation is what begins if there’s no fertilization and the corpus luteum regresses, while fertilization happens after ovulation when sperm meet the egg, and corpus luteum regression occurs later if pregnancy does not occur.

LH surge prompts the release of the egg from the dominant follicle, and this ovulation typically occurs about 24 hours after that surge. In a normal cycle, the LH peak triggers the follicle to rupture and release the oocyte, making ovulation the event that follows the LH rise. Menstruation is what begins if there’s no fertilization and the corpus luteum regresses, while fertilization happens after ovulation when sperm meet the egg, and corpus luteum regression occurs later if pregnancy does not occur.