Answer: Release of a mature egg from the ovary.
- A Formation of new eggs within the ovary each cycle
- B Release of a mature egg from the ovary
- C Implantation of the embryo into the uterine wall
- D Start of the monthly menstrual bleeding phase
Correct answer: B. Release of a mature egg from the ovary
Explanation: Ovulation is the release of a mature egg (oocyte) from the ovarian follicle. It occurs around day 14 of a 28-day cycle, triggered by a surge in LH (luteinizing hormone).
The human male reproductive system: sperm formed in the testis mature in the epididymis and travel via the vas deferens, mixing with secretions of the seminal vesicle, prostate and bulbourethral glands. Image: Wumingbai, CC BY-SA 4.0, via Wikimedia Commons.
Concept context
Male and female reproductive systems, gametogenesis, fertilization, implantation, pregnancy, and reproductive health.